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Electrical

Shower Tripping Circuit breaker in RCD approx 5 to 15 mins after showers use.

Anonymous user 09/03/2024 - 3.28 PM

Hi all, Help needed, A Circuit breaker in my RCD connecting my mains to a shower unit keeps tripping Shortly after use. Approx 5 to 15 mins after the shower has been used and switched off. The time the shower is running for doesn't seem to effect the results of Circuit breaker been Tripped in my RCD. A Short, Faulty RCD, Faulty Circuit breaker, bad earth.Failing Cable? To answer Deacon Electrical services, its a fairly new RCD with all the mains out,Sockets, lights, Shower,cooker,etc... Oddly tho the shower runs from that RCD to a second small black RCD and then out to the shower. thank you Deacon Electrical Services, I'm getting a electrician in after the bank holiday. Advice appreciated. I know my basics as far as wiring in concerned but this now getting above my pay grade.

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2 Answers

DEACON ELECTRICAL SERVICES

Rating: 5 out of 5

Grimsby

Who knows. It will require an electrician with test equipment to diagnose. Impossible to do so remotely. When you say RCD & MCB are you sure it’s not an RCBO? My edit….so you have 2 RCDs before the shower? If so this could be the problem. An MCB will trip on overload, an RCD trips on earth fault to live or neutral. It senses an imbalance and trips. Whoever fitted it needs to be got back as there is something not quite right about any of this. Very doubtful if it’s the RCD itself, but a ramp test to check tripping times can be done on it to prove it is or it isn’t.

Answered28 April 2022

Bia Electric Ltd

Rating: 5 out of 5

Horsham

Anything to do with an electric shower needs to be sorted by an electrician. You aren’t supposed to have 2 RCDs in series if they are both rated 30mA but I doubt that’s the problem. If your electric shower has a leak, this may account for the delay, but ultimately someone needs to come out and test the insulation on each circuit on that RCD to isolate the fault. The shower may just be suppling the power to a fault elsewhere. Best of luck.

Answered27 May 2022