What to do if an RCD trips without a load
In the apartment, an RCD without a load worked (we are talking about a new building, there are no household appliances, it worked, you can say, from scratch). An electrician came, made a diagnosis, found nothing, reconnected something (as I understood, he turned off the RCD, because the RCD does not work on the "test" button). Now the knife switches in the shield on the entrance platform began to be cut down, the apartment is completely de-energized. No appliances are turned on even with the lights off - the apartment does not even have a refrigerator.
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Hello! I recommend that you call a more qualified electrician who not only finds the cause of the RCD trip without load, but also tells what he did to eliminate it. All the reasons for the operation of the residual current device are listed in the article: https://my.electricianexp.com/en/pochemu-srabatyvaet-uzo-i-chto-delat-v-etom-sluchae.html.