Wylex 6A MCB/RCD fitted as part of a Part P installation. Working fine for two years. The upstairs lighting circuit is via a radial layout, not loop-in.
For past four days the RCD has been tripping out at random times during night hours. Frequently after all lights on the circuit have been turned off.
There have been no changes to the electrical installation since signed off by an electrical contactor.
Circuit consists of Part P low voltage down lighter/extractor fan installation in bath room. Part P Shower light/extractor fan in shower room. Halogen ceiling light on upstairs landing. Three bedroom pendant fittings with Low Energy bulbs. There are no external lights hanging off of the circuit. Extractor fans are protected by DP isolation switches.
I have isolated the extractor fans, RCD still trips at random intervals between 11pm and 5am.
I have operated lights individually & simultaneously during the day, no RCD operation.
I removed one of the (8W) low energy bulbs last night and the RCD appeared to stabilise. I was preparing to swap out the ceiling rose today, but once again the RCD had tripped out while everyone was asleep.
I'm confused.UK!
Anyone any ideas please?
For past four days the RCD has been tripping out at random times during night hours. Frequently after all lights on the circuit have been turned off.
There have been no changes to the electrical installation since signed off by an electrical contactor.
Circuit consists of Part P low voltage down lighter/extractor fan installation in bath room. Part P Shower light/extractor fan in shower room. Halogen ceiling light on upstairs landing. Three bedroom pendant fittings with Low Energy bulbs. There are no external lights hanging off of the circuit. Extractor fans are protected by DP isolation switches.
I have isolated the extractor fans, RCD still trips at random intervals between 11pm and 5am.
I have operated lights individually & simultaneously during the day, no RCD operation.
I removed one of the (8W) low energy bulbs last night and the RCD appeared to stabilise. I was preparing to swap out the ceiling rose today, but once again the RCD had tripped out while everyone was asleep.
I'm confused.UK!
Anyone any ideas please?