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Member Since 25 Nov 2011
Offline Last Active Nov 26 2011 05:54 PM

Topics I've Started

DD603 F&P Dishdrawer - Top F1, Bottom no power, heater plate and resistor ok...

25 November 2011 - 06:16 PM

Hi guys,

I have a DD603 dishdrawer.

Currently I have a F1 fault and top drawer motor spinning on the top drawer which is persistent - comes back even after hitting power off, or unplugging supply power.
The bottom drawer shows no power. From what I've read (service manuals, this forum and the bulletin from F&P) this indicated power supply resistor

Recently I had to replace the mains filter board because the flood switch shorted out (and burnt a big hole in the pcb - over possibly hours of fizzing). I've replaced the board (w secondhand) and connected everything up.

Following the appliance servicing guide, I've removed the heater plate to check the thermal fuse and what I understand to be the most likely problem - the power supply resistor.

I've linked to a photo of the plate here:

I'm guessing the finer track on the outer edge of the plate is the power supply resistor and the wider inner track is the heater?

In that case the heater track is 59.6Ohms and the power supply resistor is 125.1Ohms (all at room temp - 20degC)

So all looks good. In fact the process of writing this I have established the thermal fuse and supply resistor are probably ok.

What's the next step then for a dead bottom drawer and persistent F1 code and spinning rotor on the top? I have eliminated any type of flood from the equation.
Is it some relay on the mains filter board or is it the controller board for the lower drawer causing problems?

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