Beko WMB91242LB
Good morning all, I have a problem with my Beko washing machine. I was watching T.V last night when the RCD for the kitchen tripped, the washing machine had finished it cycle and I loaded into the dryer. This morning I have checked the fuse's and they are ok. The control panel is dead and I am unable to find any schematics for the machine. I did some googling and it returned that this part (p/n 2817690101) is responsible for the DC voltage (Panel and such I suspect.) Can anybody please confirm this. I get 30v on the left 2 pins of KN12 and nothing on the right 2 pins of KN12.
Any advice would be great before I go buying components I may not need.
Regards
Jay
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Solution Summary
AI-generated from this discussion
This thread was marked as solved. Here's a summary of the problem and the fix, generated from the discussion below.
Beko WMB91242LB dead control panel after kitchen RCD trip
- The problem
- After a completed wash cycle, the kitchen RCD tripped. The next morning the washing machine's mains fuses checked ok, but the control panel was completely dead. The owner measured 30V on the left two pins of connector KN12 and nothing on the right two pins, and suspected PCB part 2817690101.
- Likely cause
- An earth leakage or insulation fault elsewhere in the machine may have caused the RCD trip and may also have damaged the PCB. The discussion says the PCB could have failed, but this was not confirmed. Other possible causes mentioned were the motor, heating element, or wiring rubbing on the casing.
- What fixed it
- Do not guess and replace parts speculatively. The recommended action was to carry out a proper insulation test on the washing machine to find the cause of the trip before replacing any PCB, as fitting a new PCB could result in further damage if another fault remains present. The exact repair was not confirmed.
- Checks to try
- Kitchen RCD had tripped
- Machine fuses were checked and reported ok
- Control panel was dead
- 30V measured on the left two pins of KN12
- No voltage measured on the right two pins of KN12
- Parts or tools mentioned
- PCB part 2817690101
- insulation test meter
Safety: Further diagnosis should be carried out by a suitably qualified appliance engineer.
1 Answer
Hello there Jay. I would strongly recommend against guessing at parts. I constantly hear from people who have wasted lots of money buying various parts. No part should ever be replaced unless you know it is faulty. If you happen to be an appliance engineer with a van load of parts then it's not such a problem to speculatively swap one out to see if it fixes the fault. But if you have to order and pay for one, and then will be unable to send it back then it is a big gamble. If the washing machine tripped the electrics then the first thing an engineer would need to do is to test the washing machine with an insulation test meter. This would put 500 V DC through all of the parts and wiring in the machine to detect if there is any leakage to earth. Without such a meter, and it's a specialist meter, then you are unable to assess what has caused the washing machine to trip the electrics (Washing Machine Tripping or Fusing Electrics).
It's always possible for the electrics to trip and then once reset everything appears to be all right. But if yours has been reset and now something is not working properly this implies that some part has failed or been damaged. It is possible that the PCB you show has failed. But it is also possible that another part on the washing machine such as the motor, or the heating element, or even a wire rubbing on the casing somewhere has caused electrical damage to it. In such a case a new PCB could also get damaged.
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