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URGENT! LB 6800 brother embroidery machine has F05 speed sensor error! Please help.

Brother sewing/embroidery machine LB6800 is stopping mid embroidery and continuously beeping and showing F05 speed sensor. I understand I may need to clean the speed sensor? Where is it and how do I access it? I don't seem to be able to remove the front cover without breaking it... Please help! Thank you

Posted by Maddy Plimmer on


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SOURCE: Brother 8200/8500 Upgrade -- opening machine and replacing motherboard

hi, to open the pc-8200 first you need remove the right cover these have 1 screw under a plastic cap.
now you remove the 2 plastic cover in the left side upper and low these are onlu a screw in the back an remove pull to the left side.

Next remove the plastic cover where rest the embroidery these have two screw, you can see easy...

at this time you have only the front & rear cover, this have a hiden screw and lot of presure grapes.

if you need more help sendme a email [email protected]

Posted on Apr 11, 2008



  • 66 Answers

SOURCE: Bobbin Case

ok Sim this is a bit tricky but not to tricky first turn the handwheel toward you until the hook is at one o clock postion then slide the case without the bobbin in into the hook area you may have to work the handwheel back and forth alittle but it should slide in just remember that the case should ride in the rim. also take the needle out first that way you wont get stuck trust me it happiens.

Posted on Jan 28, 2009


  • 46 Answers

SOURCE: Error message on Brother SE-270D sewing machine

The safety device will activate if the machine has a bind or is unable to run at correct speed. If you turn the handwheel is it tight/hard to turn? if it is than thats it. Now what is binding the machine has to be diagnosed.

Posted on Jul 25, 2009


  • 55 Answers

SOURCE: Thread Breaking On Brother Sewing Machine

if thread is good quality you may have a sharp groove in your needle plate hole from needle breakage. if so, polish with emery tape.


Posted on Jul 27, 2009


  • 53 Answers

SOURCE: cotton breaks on Brother Embroidery Galaxie 2100 machine

Try turning down your top tension setting a bit. If its at 4 or 5, i would turn it down to about 3 ish. Cotton thread is more brittle than polyester and rayon thread.

Hope that helps :)

Posted on Jun 06, 2010

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My brother sewing machine LB 6800 is showing FO5 speed sensor error what can I do to fix it

You may need to get the sewing machine serviced; the repair must be handled as if you are fixing a computer. The F05/F5 error indicates a problem with the timing shutter, the PCB board or the wiring between them.

If you are going to try this, first unplug the machine and check the wiring. Next clean the timing shutter if the wiring is undamaged. Replace the timing shutter if the error recurs. If the machine still gives the F05 error, the PCB board has to be replaced.

Some of the parts for the Brother LB6800 are here:

I hope this helps.

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Brother pe-770 f05 speed sensor error - How to fix?

F05 error, speed sensor. I fixed successfully 2 of those. Speed sensor is located on a small board, under a protective plastic, located over the main front board. Remove front panel and bobin winder assembly. Remove the 2 screws of the small board. Remve CAREFULLY the small bord. Under, on the main shaft, are located the needle positionning sensors and the wheel of the speed sensor (left wheel on the shaft). The speed sensor is located on the board itself, it's very small. Clean carefully both the wheel and the sensor with Q-Tips and alchool, reassemble the whole thing and it should restart.
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