Hi everyone. I have a strange problem with my water heater MCB. It always trip off, at random timing. Even when the water heater switch is off, that particular MCB will trip off at random time. May I know what is the problem? MCB (15 years old) became too sensitive or faulty? Or maybe wiring problem? I’m staying in a condominium.

This post has been edited by lcloon: Apr 25 2023, 09:34 AM