F 06 whirlpool duet washer (by 3 users)

I had a similar problem.

The duet would always return an F06 error on the spin cycle(after about 1 min after doing the drain cycle). the motor would turn during the drain cycle for about 1 second and the other cycles acted somewhat normal.

Heres the solution:

The MCU uses the tachometer of the motor(rpm sensor) during the spin cycle only. It returns F06 because it can't read the rpm's. (for some reason it doesn't use it during normal cycles)

What I found out was that a resistor, believe it or not was bad. A 0.01 cent part to fix a 1000$ machine. (I wonder how much money has been wasted on this problem ;/)

The resistor is the first resistor that enters the mcu board on the tachometer. (I put the mcu back up before I could take a picture)

To find it, trace the circuit from the back side of the board where the tachometer wires come in at(its the 2 lower ones out of the 5 black + green(ground)). One of them will lead to a via(thing that goes to other side of board) which leads to a resistor labeled 471(470 ohms). On mine it looked slightly charred at the top almost like dirt and I didn't think about it but I finally put an ohm meter across it and it read open(should have read something).

After replacing it everything seems to have been working fine. What happened was that the tachometer wasn't being able to be read and hence the spin cycle wasn't able to start.

Replacing the MCU board would have solved it too but at a cost of several hundred(a total rip off specially for a 1 min fix if you have that problem).

Took me several hours to fix it so hopefully this will same a few others time. You can repay me by not buying from whirlpool!