How to Fix Brother Sewing Machine Error Code F1

Q:  What does F1 error message mean?
Ans: Main motor rotation failure
Q:  How to fix F1 error message?
Ans: Unplug the sewing machine and check the wiring connections on the power supply PCB and the main PCB assembly. Reconnect any loose wires. If the problem persists, replace the power supply PCB. If the F1 code returns after replacing the power supply PCB, replace the main PCB assembly.
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