We got a brand new Belling 90cm Dual Fuel cooker installed on Monday. All in fine and working well. Didn't use it that much but was perfectly fine. Then randomly yesterday whilst not in use (hadn't been used since the previous evening) in the middle of the day it tripped the RCD for half of the house.
By turning off the cooker at the cooker switch we have been able to reinstate all of the circuits except the cooker one. Bizarrely even if the cooker circuit is off on the RCD, it still trips the other half of the circuit if I turn on the cooker switch.
If anyone has any idea why this would be that would be great. Not sure whether it's just not been wired in properly, or whether the oven is faulty despite being a couple days old.
Likely it has been stored where it was damp and one of the elements has drawn in moisture.
If been in storage for years then once dried out likely it will be OK however if not been in storage that long then fault may return.
The standard way to cure it is rather dangerous and I am not going to say on a DIY forum how it is done.
The elements are mineral insulated and that insulation will draw in moisture. Once over boiling point it will drive out the moisture and as long as the cooker is used then unlikely the moisture will return. But although common with second hand items which have been in storage for new items this is not really acceptable.
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