I had a new circuit board fitted by the landlords on Friday and since then the cooker will not work. When you switch on at the hob it trips out everything. The oven light comes on though? I have called the Landlord and the electricians who are saying my cooker may be at fault?? Its 2 years old and was used for lunch before he did any works!
If there is no issue with the cooker then it sounds like the wrong size MCB as been fitted
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If he changed box could be cooler as he has change to rcd or it could be connected on the wrong g side if it's a split box insulation resistance test will tell if circuit ok or pat test cooker to see if its faulty
Fusebox neutral connected to different bank as live ..common issue
Not the cooker that is faulty ,if it trips at the board then it's an 'earth to neutral 'fault meaning something wrong with either neutral or earth circuits.
More then likely when you had a consumer unit upgrade they changed the protection devices from old fuses to RCD protection. With some older hobs they will trip the RCD and this will cause everything that the RCD controls to lose power. I would suggest that a qualified electrician look at the circuit.