Machine troubleshooter

Brother troubleshooting

Fix Brother PR multi-needle and SE, PE, NQ, Innov-is and Skitch embroidery machines. Error messages, F** codes, thread breaks, birdnests, USB files, care.

Commercial & home
Made in Japan
Since 1908
Files: PES (native), PHC, PHX (PR and newer Innov-is), PEN (some Innov-is), DST

Control panel: PR series: colour touch panel with touch pen; SE/PE/NQ/Innov-is: colour LCD touch screen; Skitch PP1: no screen, controlled by the Artspira phone app

Short answer

Most Brother problems are fixed by rethreading the top thread with the presser foot raised, putting in a new needle, and cleaning lint out of the bobbin area (and, on PR multi-needle machines, out of the trimmer knives and tension discs). On PR machines the message you will see most is "Check upper and bobbin thread."; on home machines it is "Check and rethread the upper thread." or "The safety device has been activated". Home SE, PE, NQ and Innov-is machines must never be oiled by the user, but PR machines need a drop of oil on the hook every day.

Brother model families

Find your machine to see what it's known for, then jump to its error codes and fixes.

PR1055X / PR1050X (Entrepreneur Pro X)

Type: Commercial-style multi-needle, 10 needles
Years: PR1055X current (operation manual v03, 2026); PR1050X is the earlier model
Field: 360 × 200 mm (14 × 7-7/8 in)
Max speed: 1,000 spm (600 spm with some frames; minimum 400 spm)
Panel: colour touch screen with touch pen, built-in camera, wireless LAN and USB
Formats: PES, PHC, PHX, DST (PES up to 500,000 stitches and 127 colour changes)

Brother's flagship 10-needle machine, sold in the US under the Entrepreneur name. It has automatic needle threading, upper and bobbin thread sensors, a thread picker and a wiper. Typical failure points are lint in the trimmer knives (Trimming sensor / Wiper errors), dirty tension discs (false "Check upper and bobbin thread" stops) and a dry hook when the daily oil drop is skipped.

Error codes PR1055X operation manual (PDF)

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PR680W / PR670E (Entrepreneur 6-needle)

Type: Commercial-style multi-needle, 6 needles
Years: PR680W current (manual 2021); PR670E is the previous generation
Field: 300 × 200 mm (11-3/4 × 7-7/8 in)
Max speed: 1,000 spm (400–600 spm with cap, cylinder and clamp frames)
Panel: colour touch screen; PR680W adds wireless LAN and a camera
Formats: PES, PHC, PHX, DST

The 6-needle sibling of the PR1055X with the same error message set, threading layout and oiling routine. Common issues are the same: lint around the moving knife, a needle bar case that stops between needles after a jam, and tension problems from wax build-up in the tension discs.

Error codes PR680W operation manual (PDF), PR670E operation manual (PDF)

multi-needle6-needlecapcamera

PR1X / PRS100 Persona

Type: Commercial-style single-needle on a PR-type tubular arm
Years: PRS100 from 2015; PR1X current (manual 2023)
Field: 300 × 200 mm (PR1X)
Max speed: 1,000 spm (lower with some frames)
Panel: colour touch screen, USB
Formats: PES, PHC, DST, PEN (PR1X)

A one-needle machine built like a PR so it can sew caps and tubular items. You change thread by hand at every colour, so most "errors" are threading mistakes after a colour change. Its message list is a short version of the PR1055X list.

Error codes PR1X operation manual (PDF), PRS100 manual list

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SE600 / SE630 / SE700 (combination sewing and embroidery, 4 × 4)

Type: Home sewing and embroidery combo, single needle
Years: SE600 2017 (now discontinued), SE630 and SE700 current
Field: 100 × 100 mm (4 × 4 in)
Max speed: set on screen; see manual
Panel: colour LCD touch screen
Formats: PES, PHC, DST

Brother's best-selling entry machines. Nearly every problem comes from upper threading done with the presser foot down, the wrong bobbin, missing stabilizer, or designs larger than 4 × 4 in. They must not be oiled by the user.

Error codes SE600 operation manual (PDF)

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PE800 / PE900 (embroidery-only, 5 × 7)

Type: Home embroidery-only, single needle
Years: PE800 2016–present; PE900 is the newer version
Field: 180 × 130 mm (7 × 5 in); larger designs are rejected even when rotated
Max speed: adjustable on screen; see manual
Panel: colour LCD touch screen, USB
Formats: PES, PHC, DST (combined design limit about 200,000 stitches and 125 colour changes)

A very common first embroidery machine. Typical complaints are birdnests under the hoop (upper thread not seated in the tension discs), "file not showing" on USB (file name, folder or design size), and thread breaks from old or low-quality thread.

Error codes PE800 operation manual (PDF)

homeembroidery-only5x7beginner

Innov-is NQ1700E and mid-range Innov-is (NQ, NS, XE series)

Type: Home embroidery-only or combo, single needle
Years: NQ1700E 2021–present
Field: 260 × 160 mm (10-1/4 × 6-1/4 in) on the NQ1700E
Max speed: adjustable on screen; see manual
Panel: colour LCD touch screen, wireless LAN, USB
Formats: PES, PHC, PEN, DST

A step up from the PE line with a bigger field and wireless transfer. Adds wireless network messages on top of the usual home messages. Same no-oil rule as other home machines.

Error codes NQ1700E operation manual (PDF)

homeembroidery-only6x10wireless

Innov-is Luminaire (XP), Stellaire (XJ) and Aveneer (top-tier)

Type: Premium home sewing and embroidery, single needle
Years: 2017–present (several generations: XP1, XP2, XP3, XJ1, XJ2)
Field: up to 408 × 272 mm on Luminaire XP1; smaller on Stellaire
Max speed: adjustable on screen; see manual
Panel: large colour touch screen; built-in camera and projector on Luminaire
Formats: PES, PHC, PHX, PEN, DST (see each manual)

Feature-rich machines whose error messages appear as screen pictures in the PDF manuals. The ones you hit most are the needle plate warning (removing the plate with power on), the dual feed foot warning in embroidery mode, and camera positioning-sticker messages. Never oil these machines yourself.

Error codes Luminaire XP1 embroidery manual (PDF), XP3 manual list, Stellaire XJ2 manual list

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Skitch PP1 (app-controlled)

Type: Home embroidery-only, single needle, no screen
Years: current (manual v03)
Field: 100 × 100 mm (4 × 4 in)
Max speed: 400 spm
Panel: none; Artspira app over Bluetooth LE, one LED "Start/Stop" button
Formats: designs are sent from the app

Brother's small app-driven machine. It is the only Brother embroidery machine covered here that shows numbered error codes (#1001 to #1006) in the app. Most problems are threading, a needle plate cover not clicked into place, or a lost Bluetooth link.

Error codes Skitch PP1 operation manual (PDF)

homeappbluetooth4x4numbered codes

Brother error codes 65

Type the code or words from the screen. Codes vary by model and software version — when in doubt, your machine's own manual wins.

Code	Message	What it means	What to do	Models	Source
Check upper and bobbin thread	Check upper and bobbin thread.	The thread sensors saw a problem: top thread broken or out of its guides, bobbin empty or broken, tension too tight, or lint in the tension discs.	Rethread the top thread under the upper and middle guides. Check the bobbin has thread with about 2 in pulled out. If the thread is not broken, take off the tension dial and clean lint from between the felt washers. Back up a few stitches before restarting.	PR1055X, PR680W, PR1X	PR1055X manual, PR1X manual
Safety device activated	The safety device has been activated. Is the thread tangled? Is the needle bent?	The motor stopped because thread is jammed or the needle is bent or hitting something.	Turn the machine off. Cut away tangled thread in the hook area, check the bobbin case is seated, put in a new needle and rethread. On PR machines also put a drop of oil on the hook.	All	PR1055X manual, SE600 manual, PE800 manual
Trimming sensor error	Trimming sensor error.	The thread trimmer did not finish its cycle, usually because of lint or thread around the knives.	Remove the needle plate and brush lint from the moving knife, fixed knife and thread retaining plate. Do this once a month as routine.	PR1055X, PR680W, PR1X	PR1055X manual
Wiper error	Wiper error	Thread is wound on the wiper, lint is around the knives, or the thread did not go through the thread cutter groove.	Pull tangled thread off the wiper, clean around the knives, and seat the thread fully in the cutter groove when threading.	PR1055X, PR680W, PR1X	PR1055X manual
Picker error	Picker error	The thread picker that holds the top thread at start did not move correctly.	Remove thread tangled on the picker, then touch OK on the screen.	PR1055X, PR680W, PR1X	PR1055X manual
Needle threader error	Needle threader error	The automatic needle threader jammed.	Remove thread caught in the threader mechanism, then touch OK. If it keeps failing, check the needle is fully up and straight.	PR1055X, PR680W, PR1X	PR1055X manual
Needle threader in position	Needle threader is in threading position.	You pressed another button while the threader was still working.	Press the automatic threading button to finish, then do the other operation.	PR1055X, PR680W, PR1X	PR1055X manual
Inappropriate needle stop position	Inappropriate needle stop position	The needle stopped in the wrong place, often after a jam or turning the handwheel by hand.	Turn the handwheel until its mark is at the top, then touch OK.	PR1055X, PR680W, PR1X	PR1055X manual
Needle bar case home position error	Needle bar case home position error.	The needle bar case could not return to its start position.	Touch OK to let the machine reset the case. Remove anything blocking the case or thread pulling on it.	PR1055X, PR680W	PR1055X manual
Needle bar case position error	Needle bar case position error	The needle bar case stopped between needles.	Touch OK to reset. If it repeats, check for tangled thread at the thread guides above the needle bars.	PR1055X, PR680W	PR1055X manual
Needle case motor locked	Needle case motor has been locked.	The motor that moves the needle bar case jammed.	Touch OK to reset. Clear any thread or object in the case's path. Call a dealer if it keeps returning.	PR1055X, PR680W	PR1055X manual
Stop while transferring	Stop while needle bar case transferring.	The machine stopped while changing needles.	Touch OK so the case resets, then restart.	PR1055X, PR680W	PR1055X manual
Change to a larger frame	Change to a larger embroidery frame.	The frame fitted is too small for the design, or the frame holder thumb screws are loose so the frame is misread.	Tighten both thumb screws on the frame holder. If they are tight, fit a frame large enough for the design.	PR1055X, PR680W, PR1X	PR1055X manual
Thread antenna	Please set up the "Thread antenna"	The thread guide assembly (antenna) is folded down.	Raise and lock the thread guide assembly before sewing.	PR1055X, PR680W	PR1055X manual
Unlock key	Press the unlock key to unlock the machine.	The trim button was pressed while the machine was locked.	Touch the unlock key on the screen first.	PR1055X, PR680W, PR1X	PR1055X manual
Go to embroidering screen	Go to Embroidering Screen and press the unlock key.	The trim button was pressed on the wrong screen.	Switch to the embroidering screen, unlock, then trim.	PR1055X, PR680W, PR1X	PR1055X manual
Start and end points	Impossible to set the start & the end points.	The chosen start position does not fit inside the frame.	Pick another start point or move the design inside the frame.	PR1055X, PR680W	PR1055X manual
Exceeds data capacity	This pattern cannot be used since it exceeds the data capacity.	The design has too many stitches (over 500,000 on PR1055X) or too many designs are being edited.	Reduce stitch count or split the design in your digitizing software.	PR1055X, PR680W, PR1X	PR1055X manual
Pattern cannot be used	This pattern cannot be used.	The design was bought or downloaded for a different machine.	Use a copy of the design licensed for this machine, or a plain PES/DST export.	All	PR1055X manual, SE600 manual
File cannot be used	This file cannot be used.	The file format is not one this machine reads.	Export as PES (or DST) and copy it again.	PR1055X, PR680W, PR1X, newer Innov-is	PR1055X manual, Brother online manual
Cannot recognize data	Cannot recognize the data for the selected pattern. The data may be corrupted.	The file is damaged or was written by another maker's software in a way the machine cannot read.	Turn the machine off and on. Re-export the file from your software and copy it fresh to the stick.	All	PR1055X manual, PE800 manual
Pattern cannot combine	This pattern cannot combine.	A split (oversized) design cannot be merged with another design.	Sew the split pieces on their own.	PR1055X, PR680W, PR1X	PR1055X manual
USB media error	USB media error	The USB stick cannot be read or is damaged.	Touch OK and try again; then try a different plain flash drive from Brother's USB compatibility list.	All	PR1055X manual, PE800 manual
USB not loaded	USB media is not loaded. Load USB media.	You tried to open or save on USB with no stick in.	Insert the stick and wait a few seconds for it to be recognised.	All	PR1055X manual, PE800 manual
USB cannot be used	This USB media cannot be used.	The stick type is not supported.	Use a plain USB flash drive. Card readers and hubs often fail.	SE600, PE800, NQ1700E, Innov-is	SE600 manual, PE800 manual
Not enough space	Not enough space. Delete some patterns or use a different USB media.	The USB stick is full.	Delete files from the stick or use another one.	PR1055X, PR680W	PR1055X manual
Failed to save file	Failed to save file.	More than 100 screen images or camera images are on the stick.	Delete old image files from the stick or use a different stick.	PR1055X, PR680W, PR1X	PR1055X manual
Not enough memory	Not enough available memory to save the pattern. Delete another pattern?	Machine memory is full.	Delete saved designs you no longer need.	All	PR1055X manual, PE800 manual
PC link (USB)	Cannot communicate between PC and machine. Please check the USB cable connections to run the Link application.	Link mode cannot get data over the USB cable.	Turn off the machine, reseat the USB cable, turn it back on.	PR1055X, PR680W	PR1055X manual
PC link (wireless)	Cannot connect to the PC. Please check the network connection.	Link mode cannot get data over wireless LAN.	Check the wireless connection on both PC and machine, then restart the machine.	PR1055X, PR680W	PR1055X manual
Positioning mark not found	Cannot recognize the embroidery positioning mark.	The camera did not see the positioning sticker.	Place the sticker inside the selected area, flat and well lit, and scan again.	PR1055X, PR680W	PR1055X manual
Jumbo frame mark	Can not find the positioning mark, please set the frame to the previous position.	During a jumbo-frame design the sticker could not be found.	Repeat the jumbo-frame positioning steps from the manual.	PR1055X	PR1055X manual
Main motor errors	Main motor current / encoder connect / encoder signal / rotate / speed error.	Fault in the main motor or its sensor.	Turn off and on once. If it returns, stop and call an authorised Brother dealer.	PR1055X, PR680W	PR1055X manual
Power supply voltage error	Power supply voltage error (24V or 40V, high or low).	Internal power supply out of range.	Plug straight into a wall outlet (no extension reel), restart once, then call a dealer.	PR1055X, PR680W	PR1055X manual
Machine PCB error	Machine PCB power off. / Machine PCB reset.	Main board fault.	Call an authorised Brother dealer.	PR1055X, PR680W	PR1055X manual
Communication errors	Communication error. / Communication time out error. / Data receiving command error. / EEPROM read/write error. / Panel communication error. / Embroidering stop.	Internal electronics fault.	Restart once; if it repeats, call an authorised Brother dealer.	PR1055X, PR680W	PR1055X manual
X/Y home error	X-axis home position error. / Y-axis home position error.	The frame carriage could not find home.	Check nothing blocks the carriage, restart once, then call a dealer.	PR1055X, PR680W	PR1055X manual
XY moving error	XY moving error.	The design would drive the frame past its limit.	Fit a larger frame or move the design back toward the centre.	PR1055X, PR680W	PR1055X manual
Preventive maintenance	Preventive maintenance is recommended.	The machine's run counter says a service is due.	Touch OK to keep working, and book a service with a dealer; the message comes back until it is serviced.	All	PR1055X manual, SE600 manual
Resume after power off	OK to recall and resume previous memory?	Power went off during sewing.	Touch OK, then back up a few stitches before restarting.	All	PR1055X manual, PE800 manual
Set the clock	Set the clock.	Date and time are not set.	Set the date and time in the settings screen.	PR1055X, PR680W	PR1055X manual
Select a pattern	Select a pattern.	Start was pressed with no design chosen.	Choose a design first.	PR1055X, PR680W	PR1055X manual
Pattern outside frame	Pattern extends to the outside of embroidery frame.	Lettering or edits make the design larger than the frame.	Make the text smaller, change layout, or use a bigger frame.	All	PR1055X manual, SE600 manual
Selected pattern too big	Selected pattern field extends to the outside of the embroidery frame.	The design is bigger than the largest frame.	Resize the design to fit 7 × 5 in, or pick another design.	PE800	PE800 manual
Check and rethread	Check and rethread the upper thread.	The top thread is broken or not threaded correctly.	Raise the presser foot and rethread from the spool, making sure the thread is in the take-up lever.	SE600, PE800, NQ1700E	SE600 manual, PE800 manual
Bobbin almost empty	The bobbin thread is almost empty.	The bobbin sensor says the bobbin is running out.	Stop, cut threads, take off the frame and put in a full bobbin; then back up a few stitches.	All home models	SE600 manual, PE800 manual
Lower the presser foot	Lower the presser foot lever.	Start was pressed with the presser foot up.	Lower the presser foot lever.	SE600, PE800, NQ1700E, Innov-is	SE600 manual
General malfunction	A malfunction occurred. Turn the machine off, then on again.	An internal fault was detected.	Turn the machine off and on. If it returns, take it to a dealer.	SE600, PE800, NQ1700E	PE800 manual
Bobbin winder safety	The bobbin winder safety device has activated. Is the thread tangled?	The bobbin winder jammed.	Cut the tangled thread under the winder seat and rewind using the winding guide.	SE600, PE800, NQ1700E	PE800 manual
Carriage will move	The carriage of the embroidery unit will move. Keep your hands etc. away from the carriage.	Normal warning before the unit moves.	Keep hands clear and touch OK. If the unit does not move, reattach it with the frame off.	SE600, PE800, NQ1700E	PE800 manual
Data too large	Data volume is too large for this pattern.	The designs being edited use too much memory.	Remove some designs from the combination.	SE600, PE800, NQ1700E	PE800 manual
Main shaft motor heated	The safety device was activated since the main shaft motor was heated. Is the thread tangled?	The motor overheated.	Clear any tangle and let the machine cool. If it repeats, call a dealer.	Newer Innov-is	Brother online manual
Needle position sensor	The safety device was activated since the needle position sensor malfunctioned.	The needle position sensor failed.	Turn off and on. If it returns, call a dealer.	Newer Innov-is	Brother online manual
Needle plate warning	Turn off the machine before attaching or removing the needle plate.	The needle plate was removed with power on, or a straight-stitch plate is fitted for the wrong stitch.	Turn off, refit the correct plate, turn on.	Newer Innov-is	Brother online manual
Copyright pattern	Includes a special pattern that cannot be saved to external memory.	Built-in copyrighted designs cannot be saved to USB.	Save it in the machine's memory instead.	All	PR1055X manual, Brother online manual
Foot controller	The "Start/Stop" button does not operate with the foot controller attached.	Sewing mode will not start with the button while the foot pedal is plugged in.	Unplug the foot controller or use it to sew.	SE600	SE600 manual
Wireless router not found	The wireless LAN access point/router cannot be detected.	The machine cannot see your Wi-Fi router.	Move the machine closer to the router, check the router is on, and re-enter the network name and key.	NQ1700E, PR680W, PR1055X	NQ1700E manual, Brother PR680W FAQ list
SSID or key wrong	The SSID and Network Key are incorrect.	Wrong Wi-Fi name or password.	Re-enter the network name and password exactly.	NQ1700E, PR680W, PR1055X	NQ1700E manual
F**	F** (F followed by a number)	An internal machine fault.	Note the number, turn off, and call an authorised Brother dealer. Do not keep restarting.	SE600, PE800, NQ1700E, Innov-is	SE600 manual, PE800 manual, NQ1700E manual
#1001	The bobbin thread is almost empty	Bobbin running out.	Put in a wound bobbin and back up a few stitches.	Skitch PP1	Skitch PP1 manual
#1002	Check and rethread the upper thread	Top thread broken, misthreaded or running out.	Rethread the top thread from the spool.	Skitch PP1	Skitch PP1 manual
#1003	The machine is sensing an operational issue	Motor locked by tangled thread or a bent needle.	Turn off, clean the race, reseat the bobbin case and bobbin, replace a bent needle, rethread.	Skitch PP1	Skitch PP1 manual
#1004	Check the needle plate cover	The needle plate cover is off or not seated.	Refit the cover as shown in the race-cleaning steps until it clicks.	Skitch PP1	Skitch PP1 manual
#1005	Preventive maintenance is recommended	A service is due.	Keep sewing if needed and book a dealer service.	Skitch PP1	Skitch PP1 manual
#1006	The connection with the machine has been lost	The app lost its Bluetooth link to the machine.	Keep the phone close, restart the app and machine, and pair again.	Skitch PP1	Skitch PP1 manual

Brother problems and fixes

Fixes are in order — cheapest and most likely first. Filter by symptom or type what you see.

Top thread keeps breaking or shreddingThread breaksNeedleTension

Likely causes: threading missed a guide, bent or sticky needle, tension too tight, old or poor thread, burrs on the needle plate or foot, dense or stacked stitches in the design

Rethread with the presser foot UP so the thread drops into the tension discs. On PR machines make sure it passes under the upper and middle thread guides.
Put in a new needle (75/11 embroidery). Needles with adhesive from spray or sticky stabilizer cause breaks; replace them.
Pull the thread by hand below the needle: it should feel smooth and even. If it jerks, look for a missed guide or a knot.
Try a fresh spool of quality thread. Old thread gets brittle.
Slow down to 400 spm for metallic or specialty thread.
On PR machines, clean lint from between the tension felts and check the tension dial is not over-tightened.
Check the design: stitches with zero length, very short stitches, or three or more layers on top of each other break thread. Fix density in your digitizing software.

Call a technician if: the needle plate hole, hook or foot has burrs you can feel, or breaks continue after a new needle, new thread and clean tension.

Upper thread path: Every guide from the cone to the needle eye — the fix for most breaks and nests. — **Upper thread path.** Every guide from the cone to the needle eye — the fix for most breaks and nests.

Link to this fix

Birdnest (thread tangle) under the fabricBirdnestThread breaksTension

Likely causes: top thread not in the tension discs, presser foot down while threading, wrong bobbin, flagging fabric

Cut the nest away from the bottom of the hoop. Do not pull the fabric out by force.
Raise the presser foot and rethread the top thread completely. This is the number-one cause on SE and PE machines.
Take out the bobbin case, brush lint from the race, and reseat the bobbin so the thread unwinds in the direction shown in the manual.
Use only Brother-type bobbins made for your machine. Other bobbins do not seat correctly.
Hoop the fabric drum-tight with stabilizer.

Call a technician if: nests continue with fresh threading and the right bobbin; hook timing may be off.

Link to this fix

Bobbin thread shows on top or tension looks wrongBobbinTension

Likely causes: top tension too tight, bobbin not seated, lint in the bobbin case spring, wrong bobbin thread

Rethread both threads.
Clean the bobbin case tension spring area with the edge of a business card each time you change the bobbin (PR machines).
On PR machines, test bobbin tension with the included weight and adjust it before touching top tension. Check again whenever you switch between prewound and metal bobbins.
On home machines, use embroidery bobbin thread and the bobbin case meant for it. Some models include a second case that can be adjusted.
Sew the built-in tension test design: from the back, bobbin thread should cover about one third of the satin width.

Call a technician if: tension will not change when you turn the dial.

The I-test for tension: Read the back of a satin column to balance top and bobbin tension. — **The I-test for tension.** Read the back of a satin column to balance top and bobbin tension.

Link to this fix

Needle breaksNeedle

Likely causes: needle not fully up in the clamp, loose clamp screw, bent needle, frame hitting something, wrong presser foot height

Fit a new needle with the flat side to the back (home) or as shown in the PR manual, pushed all the way up, and tighten the screw.
Check the embroidery foot is attached correctly.
Make sure the frame and carriage cannot hit a wall, table edge or loose fabric.
Use stabilizer under every design.
Replace a scratched needle plate, foot or bobbin case.

Call a technician if: the needle hits the needle plate, or there is forward and back play in the PR needle bar case.

Needle orientation: Long groove to the front, scarf to the hook, pushed fully up. — **Needle orientation.** Long groove to the front, scarf to the hook, pushed fully up.

Link to this fix

Machine stops with "safety device" messageSensorsMotorsThread breaks

Likely causes: thread jammed in the hook race, bent needle, bobbin case not seated

Turn off the power.
Remove the needle plate cover (home) or bobbin case (PR) and pull out every loose thread with tweezers.
Brush the race clean. On PR machines add a drop of oil to the hook.
Fit a new needle and rethread top and bobbin.

Call a technician if: the handwheel feels stiff or the message comes back with nothing jammed.

Link to this fix

Thread not cut or "Trimming sensor error" (PR series)TrimmerSensors

Likely causes: lint around the moving knife, fixed knife and thread retaining plate, bobbin case not for this machine

Remove the needle plate and brush out lint around both knives.
Make this a monthly job, or weekly on busy machines.
Use the correct Brother bobbin case.
Check the thread passes through the cutter groove.

Call a technician if: knives are chipped or the error stays after cleaning.

Link to this fix

Embroidery unit or frame not detected or will not moveHoopFrame / pantographMotors

Likely causes: unit not fully clicked in, frame attached before the unit initialised, PR frame holder too small or screws loose

Home models: turn off, remove the hoop, reseat the embroidery unit until it locks, turn on, and let the carriage finish moving before you attach the hoop.
PR models: tighten the two thumb screws on the frame holder and use the holder that matches the frame.
Touch the frame move key to bring the carriage to a spot where the frame slides on easily.

Call a technician if: the unit makes grinding noises or will not initialise on a second machine.

Hooping layers: Firm, flat and square — the root of most puckering and registration faults. — **Hooping layers.** Firm, flat and square — the root of most puckering and registration faults.

Link to this fix

Design misaligned or outlines do not line upRegistrationHoopFrame / pantograph

Likely causes: loose hooping, no stabilizer, frame too large, frame hit something, too little pull compensation

Hoop tight with the right stabilizer for the fabric.
Use the smallest frame the design fits in.
Keep the frame and fabric clear of walls and table edges.
On PR machines, never push the carriage by hand while sewing; if it moves, turn off and on so the frame returns to its stored position.
Add underlay and pull compensation in your digitizing software for stretchy or napped fabric.

Call a technician if: the same design drifts on stable fabric every time.

Link to this fix

Loops on top of the fabricLoopsTension

Likely causes: top tension too low, thread missed the tension disc, wax build-up on the tension guide plates

Rethread with the foot up and pull the thread to feel tension.
On PR machines, compare the feel with a needle bar that sews well.
Clean thread wax from the upper and middle thread guide plates and the tension disc.
Try a different thread.

Call a technician if: the tension dial does not change the result.

Link to this fix

USB design does not show on the machineUSBDesign files

Likely causes: wrong file type, design bigger than the field, special characters in names, too many stitches or colours, unsupported stick

Save as PES (or DST). Home SE and PE machines read PES, PHC and DST only.
Check the design size: 4 × 4 in on SE models, 7 × 5 in on PE800, 360 × 200 mm on PR1055X.
Rename files and folders using only letters, numbers, dash and underscore.
Keep PE800 designs under about 200,000 stitches and 125 colour changes; PR1055X under 500,000 stitches and 127 colour changes.
Use a plain USB flash drive; wait 5 to 6 seconds after inserting it.

Call a technician if: no stick works at all; the USB port may be faulty.

Link to this fix

Machine is noisy or the handwheel feels heavyNoiseOiling

Likely causes: lint wound in the hook, missed oiling on PR machines, damaged hook

Clean the hook and race.
PR machines: oil the hook. Home machines: do not oil; take it to a dealer.
Rethread.

Call a technician if: noise continues after cleaning; the hook may be damaged.

Hook timing: What correct hook-to-needle timing and clearance look like. — **Hook timing.** What correct hook-to-needle timing and clearance look like.

Link to this fix

Skitch will not connect or stops with #1003NetworkSensors

Likely causes: Bluetooth link lost, thread jam, needle plate cover not seated

Keep the phone near the machine and restart both.
For #1003, turn off, clean the race, reseat the bobbin case, change a bent needle and rethread.
For #1004, refit the needle plate cover until it clicks.

Call a technician if: the machine will not pair with any phone.

Link to this fix

Diagrams and photos

Tap any picture to enlarge it. Diagrams are generic — your machine's threading chart and manual take priority.

Brother multi-head embroidery machine with yellow shirts in hoops — A Brother multi-head embroidery machine sewing the same logo on several yellow garments at once. Photo: Embryohead, CC BY-SA 3.0, via Wikimedia Commons

Brother single-head industrial embroidery machine in a shop with thread wall — An older Brother industrial single-head embroidery machine (about 2001) with a separate control box and a wall of thread behind it. Photo: Joop anker, CC BY-SA 2.0, via Wikimedia Commons

Brother PR multi-needle embroidery machine with touchscreen and hooped fabric — A Brother PR-series multi-needle embroidery machine with its touchscreen, sewing a design in a hoop. Photo: Kritzolina, CC BY-SA 4.0, via Wikimedia Commons

Front of a Brother 10-needle embroidery machine with thread cones and hoop — Front view of a Brother PR 10-needle machine: thread cones on top, the take-up levers in a row, the needle bars and a large hoop below. Photo: François GOGLINS, CC BY-SA 4.0, via Wikimedia Commons

Brother multi-needle embroidery machine on a mobile stand — A Brother PR multi-needle embroidery machine on its wheeled stand at an outdoor event. Photo: François GOGLINS, CC BY-SA 4.0, via Wikimedia Commons

Close-up of numbered needle bars on a multi-needle embroidery machine sewing a letter — Close-up of the needle bars on a Brother multi-needle machine (numbered 1 to 10) while one needle sews script lettering. Photo: François GOGLINS, CC BY-SA 4.0, via Wikimedia Commons

Fabric and stabilizer clamped in an embroidery hoop under the needle — A design being stitched on fabric and tear-away stabilizer held tight in a plastic embroidery hoop on a Brother PR machine. Photo: Kritzolina, CC BY-SA 4.0, via Wikimedia Commons

Embroidery needle stitching an outline design inside a hoop — The needle and presser foot at work, stitching a running-stitch outline inside the hoop. Photo: Kritzolina, CC BY-SA 4.0, via Wikimedia Commons

Black shirt in a hoop on a Brother multi-needle embroidery machine — A black garment hooped on a Brother multi-needle machine, with the design on a laptop alongside. Photo: -stk, CC BY-SA 4.0, via Wikimedia Commons

Brother Innov-is home embroidery machine with embroidery arm and hoop — A Brother Innov-is home sewing and embroidery machine with its embroidery unit fitted, stitching a design in the hoop. Photo: Rwendland, CC BY-SA 4.0, via Wikimedia Commons

Brother home embroidery machine with large hoop on the embroidery arm — A Brother home embroidery machine with the embroidery arm attached and a large hoop fitted. Photo: X-Javier, CC BY-SA 4.0, via Wikimedia Commons

Take-up lever on the front of a sewing machine — The thread take-up lever. It must be threaded, or the top thread will tangle under the fabric. Photo: Most Craft, CC BY 2.0, via Wikimedia Commons

Two-part plastic embroidery hoop on a white background — A plain two-part plastic embroidery hoop: the inner ring presses the fabric into the outer ring. Photo: Clément Bucco-Lechat, CC BY-SA 3.0, via Wikimedia Commons

A machine-embroidered eagle crest on a polo shirt: satin borders, fill areas and lettering. Photo: Gidutex, CC BY-SA 3.0, via Wikimedia Commons

Black cap with orange and white embroidered lettering — A machine-embroidered logo on the front of a black baseball cap. Photo: Methapun, CC BY-SA 4.0, via Wikimedia Commons

A finished trucker cap with an embroidered front panel, in an embroidery shop. Photo: Methapun, CC BY-SA 4.0, via Wikimedia Commons

White satin-stitched monogram letters F and A on linen — White satin-stitch letters on white linen. Satin columns show up the stitch angle and density. Photo: Vassil, Public domain, via Wikimedia Commons

Five-minute diagnosis: Where to start when the machine stops or sews badly. — **Five-minute diagnosis.** Where to start when the machine stops or sews badly.

Why birdnests happen: What a nest is, the usual causes in order, and how to clear one safely. — **Why birdnests happen.** What a nest is, the usual causes in order, and how to clear one safely.

Bobbin drop test: Set bobbin tension before you touch the top tension. — **Bobbin drop test.** Set bobbin tension before you touch the top tension.

Presser foot height: Too high causes flagging and loops; too low drags and breaks thread. — **Presser foot height.** Too high causes flagging and loops; too low drags and breaks thread.

Cleaning and oiling points: Daily and weekly care points on a multi-needle head. — **Cleaning and oiling points.** Daily and weekly care points on a multi-needle head.

Maintenance schedule

Interval	Task	Notes
Every bobbin change	Brush lint from the bobbin area	PR: also clean the bobbin case tension spring with a card edge and check bobbin tension with the weight
Daily, before sewing (PR only)	One drop of oil on the hook	PR1055X, PR680W, PR1X and earlier PR models; oil before first use too
Every 40 to 50 hours of sewing (PR)	One drop of oil on each lower needle bar above the felt washer	Too much oil drips onto the work
Weekly or when lint builds up	Clean the race and hook area	Home: remove needle plate cover and bobbin case, brush and vacuum, never oil
Monthly (PR)	Clean around the needle plate, moving knife, fixed knife and thread retaining plate	Prevents Trimming sensor and Wiper errors
When tension gets inconsistent	Clean the tension discs and thread guide plates	Remove tension dials on PR models and clear wax and lint
When stitches skip, thread frays or after a needle strike	Change the needle	Shop rule of thumb, not a Brother interval; also after sewing sticky stabilizer
When "Preventive maintenance" appears	Book a dealer service	The message returns until the counter is reset by service
Never (home SE, PE, NQ, Innov-is, Skitch)	Oiling by the user	Brother states these are pre-lubricated; stiffness or noise means a service visit

Settings that cause stitch problems

Thread sensor OFF (PR): with the thread sensor turned off the machine will not stop for a broken or tangled thread and keeps sewing to the end. Keep it ON for production work.
Jump stitch trim and DST jump codes (PR): PR machines turn jump codes in a DST into trims, set by default to trim after 3 jump codes. If your DST trims where it should not (or leaves long jumps), change the number of jump codes or the jump length in the trimming settings.
Jump stitch trim length (home): home machines skip trims on jumps shorter than the set length. A long setting leaves long tails to cut by hand; a very short one slows the machine.
Maximum speed: PR speeds go from 400 to 1,000 spm, but cap, cylinder and clamp frames are limited to 400 to 600 spm. Drop to 400 spm for metallic thread on any model.
Embroidery Frame Identification View (home): when ON, the machine checks the design against the frame you say you are using and may refuse designs that would fit a larger hoop. Turn it OFF or pick the right frame.
Manual colour sequence and needle assignments (PR): if needle colours are assigned wrong, the machine sews the right stitches in the wrong colour. Check the colour list before you press start.
Upper and bobbin thread sensor OFF (home): turning it off hides the low-bobbin warning, so you run out mid-design.

Official manuals, FAQs and support

Straight from Brother. Links open the maker's own site.

Frequently asked questions

Do I need to oil my Brother embroidery machine?

Only the PR multi-needle and PR single-needle machines. They need a drop of oil on the hook every day before use and a drop on each lower needle bar every 40 to 50 hours. Home SE, PE, NQ, Innov-is and Skitch machines are lubricated at the factory and Brother says not to oil them yourself.

What does F** mean on my Brother machine?

An F followed by a number means the machine found an internal fault. Write down the number, turn the machine off, and contact an authorised Brother dealer. Restarting over and over will not fix it.

Why does my PR machine keep saying "Check upper and bobbin thread" when nothing is broken?

The thread sensor reads movement through the tension unit. Lint and wax between the tension felts, thread out of the upper or middle guide, or tension set too tight all trigger it. Clean the tension disc, rethread, and check bobbin tension with the weight.

Why won't my PE800 show a design from USB?

The PE800 only reads PES, PHC and DST files up to 7 × 5 in, and it hides files whose names use special characters. Very large designs (roughly over 200,000 stitches or 125 colours) are also skipped. Re-save as PES at the right size with a simple file name.

Can Brother machines sew DST files?

Yes. Brother machines read DST, but DST has no colour information, so the machine shows default colours and lists the file by name without a preview. On PR machines, check the DST jump-to-trim setting.

Why does my Brother keep birdnesting?

Almost always the top thread was threaded with the presser foot down, so it missed the tension discs. Raise the foot, rethread from the spool, check the bobbin is the right type and seated correctly, and hoop with stabilizer.

What is "Preventive maintenance is recommended"?

It is a service reminder based on the machine's run time, not a fault. You can touch OK and keep sewing, but it will keep coming back until a dealer services the machine and resets it.

Machine's fine — but the design still sews badly?

Density, underlay, pull compensation and stitch order cause more "machine problems" than machines do. EasyDigitizer builds production-ready files for Brother in your browser.

Start digitizing — free

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