Aeg washer dryer keeps blowing pump motor
Looking for Advice
Aeg washer dryer keeps tripping RCD, no faults showing on machine.
Just over 2 years old
Pump had failed,
Replaced pump, and it did work on test , filled and drained
Customer did first load, and it has blown the pump once again after 40 mins
If pump disconnected, shows pump error code, RCD not tripping when disconnected.
Is this a PCB issue?
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.
AEG washer dryer trips RCD and repeatedly damages drain pump
- The problem
- An AEG washer dryer, just over two years old, was tripping the RCD with no fault code shown on the display. The original pump had failed and was replaced. After testing, the machine filled, washed and drained normally, but on the customer's first full load it tripped the RCD at the end of the wash when it started to drain, and the replacement pump was then found electrically failed.
- Likely cause
- The discussion most strongly suggests an electrical insulation fault associated with the drain circuit or pump area. A possible explanation raised was water getting onto the pump, but this was not confirmed. A PCB fault was asked about by the original poster, but no evidence in the thread confirmed the PCB as the cause.
- What fixed it
- No confirmed repair was given. The accepted advice was that this type of tripping fault cannot be diagnosed responsibly without an insulation test meter. Further diagnosis should be carried out by a suitably qualified appliance engineer.
- Checks to try
- Pump replaced
- Machine tested in spin and drain
- Machine tested on a 90 wash
- Pump disconnected, after which a pump error code was shown and the RCD did not trip
- Replacement pump found to have no electrical resistance after the failure
- Parts or tools mentioned
- Replacement pump
- Insulation test meter
Safety: Do not continue replacing parts blindly on an RCD-tripping appliance. Further diagnosis should be carried out by a suitably qualified appliance engineer.
5 Answers
When you say no faults showing on machine do you mean nothing is showing up on an insulation meter? Also when you say blown the pump, do you mean the pump is literally blown i.e. electrically damaged? Could water some how be getting onto the pump?
Need Professional Help or Spare Parts?
Hi
Sorry for late reply.
No faults on LED display
Replaced pump
Tested in spin and drain
Tested in 90 wash.
Left machine as working
Customer put first wash in.
All ok filled and washed
Then at end of wash when starting to drain. Tripped RCD and now the pump motor has blown. Electrical no resistance.
Hope this makes sense
Hi. Have you got an insulation test meter? You can’t diagnose tripping electrics without one.
Need Professional Help or Spare Parts?
I haven't
Can go buy one. Or are they costly
Aye. Only engineers would normally buy them. Between £200 and £300. But without one you are working blind with fusing and tripping faults - Fusing or tripping electrics
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