Recent content by DaveHM

Had a look inside the cu. Seems to be a single load system and so not possible to move cooker connection. The MCB/RCD is a Hager type but does not appear in their current product list ( its got French labelling on it) Took out the temperature probe looks ok, no corrosion. Another thing, after...

transients a spike when something switches on and off. Thanks for your input.

Its a double oven & the top one works fine. The problematic bottom oven can go days without problem. Hav'nt got around to examining the inner workings of the cu. Incidentally this problem started after an oven cleaning session, must be a clue there somewhere.

Presumably you mean that when the element gets hot then there would be a neutral to ground, I thought of this and did some measurements but could not find a problem. Nice to get all this response.

I know, arcing's a phenomanum that involves lots of current

The rcd is part of the consumer unit main switch- so its looking at all circuits-. It is a Hagar unit and is rated at 30mA. It is very much a nuisance! There is a rating of 100A on the RCD.

Every now and again the switching of the oven thermostat causes the RCD on the consumer unit to trip. I think this is caused by arcing on the thermostat causing a transient that exceeds the RCD rating. Question is should I go for a new RCD or oven thermostat?