Whirlpool AWO/D049 – F12/heater circuit issue

Re: Whirlpool AWO/D049 – F12/heater circuit issue

1 and 3 are the same so you have done that

2 gives megohms but how many and to be accurate it would need to be checked with a 500v insulation meter. to apply logic before the old board failed it was not a problem so chances are low its faulty now

the heater is controlled by a relay on the main pcb. its not unusual for the soldered connection on these relays to fail. find the relay and have a close look at the solder joints

Dave

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Here’s what the guide says I should do
1. Check water heating element for continuity
2. Check water heater for earth leakage
3. check heater resistance
4. Check all wiring and connectors to the heater and from there to the main controller
5. Check main control unit

Here’s what I’ve done
1. I don’t know what this means
2. measuring resistance from the earth to the live and neutral gives megaohms.
3. it measures 27ohms which seems right for 2kW
4. they seem OK
5. Well I have no idea how to do that!

Any ideas, particularly help on 1 and 5 and if I have done 2 correctly? Cheers…

Re: Whirlpool AWO/D049 – F12/heater circuit issue

disconnect wires from heater and check to earth

at 100k to earth is far too low

Dave

Re: Whirlpool AWO/D049 – F12/heater circuit issue

take old brushes off
if they have failed they will be very short. new brushes stick out about an inch. anything over 1/4 inch should work ok but would need changing if there are no other faults

Dave