@ModernUkrainianHomestead
Well, all the story having a good ending is a good story.
In this specific case I was worried that probably while mounting the mirror I may have damaged the wire, as it was really close (and it's still so despite I was doing the electrical wiring myself, and have got everything photographed and documented)... However, in the end it appeared that actually the troublemaker was the water heater, or how we call them here - the boiler.
At some point some piece of current was flowing to the body of it, and the differential circuit breaker was detecting it (it can detect as little as 30mA) and immediately was going into preventive switch off... I was able to switch it back on, however, it went off again in some 15-20 minutes, and so on.
Steps I have taken to check and figure out the trouble:
1. Disconnected the water heater, connected other load, tried it for a while - no issues.
2. Connected the water heater back - immediately after some 10-25 minutes the differential circuit breaker switched off (the wire itself is designed to bear triple to water heaters load, so is the circuit breaker, both for 40A, so no issues on that side definitely).
3. Connected the water heater to another differential circuit breaker. Just used some extender to grab the power from the kitchen. Same result - the circuit breaker switched off in about 15 minutes.
4. Unscrewed and unconnected all the electrical part of the water heater, took out the heating elements, re-assembled it, and reconnected it all. Took me about 15-20 minutes to get it done. And well, no issues after that. It was running for several more hours without any issues.
Well, now the question, what possible could've been wrong on the water heater side? Since I have done literally nothing, just put it apart, and gathered it all together again, that's it.
16 июл 2024
