How To Repair A Whirlpool Washer with PF Fault Code

In this video, I show how to diagnose and repair a Whirlpool washer that is displaying the dreaded PF fault code. The PF code indicates that during the onboard controller's self check mode, it detected a fault in the power supply voltage to the controller.

A quick voltage test at the electrical outlet showed that only 108v AC was present, instead of the required 120-125v, thus triggering the PF code. A month earlier, the Whirlpool wall mount, combination microwave/oven began displaying the PF code, and also would no longer work. A quick inspection of the breaker panel on the residence revealed what was happening.

[LividLeon]

I does get that same issue. But sometime the machine time colon would just stop blinking but my area have bad voltage drop we get sometimes 100 to 108 volts.

[mikev]

Do you know the issue with an error code FO EO ?

[henrywedge]

what if the 120 volts is constant and you still get the code ?