Hotpoint still tripping RCB
I have a hotpoint wmxtf742 which tripped the rcb. I had a look and found the interlock had blow along with the harness plugged into it at the door end. I have just replaced the interlock and the harness with new parts. Turned the machine back on, selected a program and as soon as the cycle starts it tripped the rcb again. No damage to interlock this time though.
Have I missed something in replacing the damaged parts?
I’d great fuel for some advice. Hopefully not looking at a new machine
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.
Hotpoint WMXTF742 still trips RCB after door interlock and harness replacement
- The problem
- A Hotpoint WMXTF742 washing machine tripped the RCB. The door interlock and the harness connected to it at the door end were found damaged and were replaced, but the machine still tripped the RCB as soon as a programme started. The replacement interlock was not damaged after the second trip.
- Likely cause
- An unresolved insulation or short-to-earth fault elsewhere in the machine is the most strongly supported diagnosis. The discussion does not identify the exact faulty component.
- What fixed it
- The accepted advice was that this type of fusing/tripping fault cannot be reliably diagnosed without a specialist insulation test meter. Further diagnosis should be carried out by a suitably qualified appliance engineer.
- Checks to try
- Original damaged door interlock found
- Original damaged harness at the door end found
- Door interlock replaced
- Door-end harness replaced
- Machine tripped RCB again as soon as the cycle started
- Replacement interlock showed no damage after the repeat trip
- Parts or tools mentioned
- Door interlock
- Door-end harness
- Specialist insulation test meter
Safety: Do not attempt to bypass safety devices or carry out live electrical testing. Further diagnosis should be carried out by a suitably qualified appliance engineer.
1 Answer
Hi. Unfortunately you can’t deal with a fusing washing machine without a specialist insulation test meter. Even I wouldn’t be able to and I have 40 years experience. I have an article that gives a few tips on the main causes and possible clues though here Fusing or tripping electronics
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