New door interlock fitted but door does not lock
My Hotpoint washer drier WDAL 8640 P door would not open and handle also broke. I replaced the handle and the interlock, but now it does not lock. The machine seems to know that the door is shut, but after a few seconds delay where I presume it is checking if the door has locked, the lock light starts flashing and a beeping alarm sounds. The door is not locking. Any suggestions?
Solution Summary
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This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.
Hotpoint WDAL 8640 P door will not lock after handle and interlock replacement
- The problem
- On a Hotpoint washer dryer WDAL 8640 P, the door originally would not open and the handle broke. After replacing the door handle and the door interlock, the machine still would not lock the door. It appeared to detect the door as shut, but after a short delay the lock light flashed and an alarm beeped.
- Likely cause
- Most strongly supported diagnosis is loss of power or continuity to the door interlock circuit, either from wiring between the door lock and main PCB or from a fault on the main PCB. The exact failed part was not confirmed.
- What fixed it
- Recommended action was to check continuity between all door lock connectors and the main PCB. The accepted reply advised that the main PCB could be faulty, but replacement was not recommended due to cost and uncertainty. If not giving up on the appliance, PCB repair by a specialist was suggested. Exact repair was not confirmed.
- Checks to try
- Door handle replaced
- Door interlock replaced
- Checked for power at the disconnected 3-pin interlock connector before and after starting a wash programme
- Observed immediate beeping when the start button was pressed
- Recommended continuity check between door lock connectors and main PCB
- Parts or tools mentioned
- Door handle
- Door interlock
- Main PCB
Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.
2 Answers
The power should come from the main PCB so normally you’d need the check continuity between all door lock connectors and the PCB. It’s possible the PCB is faulty but I wouldn’t recommend replacing it. They are very expensive and there’s no guarantee with them. You could try sending it to QER repairs if not prepared to give up but you’ve tried the normal diy friendly things.
Need Professional Help or Spare Parts?
There seems to be no power getting to the interlock. I have checked with the connector to the interlock disconnected and there is no power across any of the 3 pins before or after starting a wash program. The machine starts beeping as soon as the start button is pushed.
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