Indesit WA155 f10: unsure of fault diagnosis

[Simon46]

Been to see with 10 flashes. Confirmed first part of fill o.k. Then unit pauses and when starting to complete the remainder of fill level up to click of pressure switch shuts down flashes 10 times. Replaced pressure switch and unplugged/checked thermistor plug and got reading down wiring to board.
Now works o.k.
Fitted old pressure switch back on still o.k. 😕
Am i going to get a phone call ?

Regards
Simon.

[Simon46]

Re: Indesit WA155 f10: unsure of fault diagnosis

AHH
Opened pressure switch.
Sh**ty alloy rivet on the common with black marks around it!
OK with 3V multimeter test.
Not OK with 10 Amps of heater current

S. 😉

[andy2]

Re: Indesit WA155 f10: unsure of fault diagnosis

Hi Simon

I’me a bit perplexed – in your first post you said that you had refitted the old p. s/w and it was OK

Did the fault re-occur later?

I have had F10 faults which are track defects on the module which makes the controller think that there is a p.s/w problem when there is’nt. Its just a breakdown in the feedback circuit. But it seems that F10 signifies a complete loss of feedback from the p.s/w. This would happen with a bad contact in the p.s/w for instance (similar to a bad heater relay contact resulting in an F8 ). With the other p.s/w codes F4 & F5 the feedback is still present but it is receiving a different signal than it expects for that part of the program.

Andy

[Simon46]

Re: Indesit WA155 f10: unsure of fault diagnosis

Andy have not heard from customer so assuming o.k. Did not remove module so either thermistor contact or P/sw. 😕

S.

[Author]

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