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WM3431HW Washer Dryer Combo washing fine, PF error on dry cycle.

thunder

By thunder
in DIY Appliance Repair Help

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thunder

thunder

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Hello there,

     I just bought (second hand, unit is from 2009) a WM3431HW 01 washer dryer combo machine last week and I am having trouble running the drying cycle.  It starts up, does the load sensing and once it completes this it runs for a short time then everything blacks out and the screen comes back with a PF error code, which I've gathered means a power failure.

- Lint is not the problem! I've checked throughout the machine; i even went as far as removing the lower heating element to see between the drum and the tub. I believe lint can be ruled out.

- I visually inspected all the PCBs and there are no visible issues or burns.

- The upper heating element is definitely working, it is hot to the touch even when not running in a dryer cycle (not sure if that is normal or not).

- I removed the blower housing and tried to run a dryer cycle with the blower faced away from the machine.  The blower motor did start but only briefly before the error code pops up.

Not really sure where to begin here, if anyone has any ideas on some troubleshooting I could try out it would be very much appreciated, cheers!

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