Hi, welcome to Just answer
Please tell me its complete model number
why was the bulbs replaced
I mean when they blew did the RCD also trip ?
could be possible, i have lived at this property for 2 mnths so do not know the history.
ok...as the extractor works fine so it seems that the blown bulb has damaged the relay on the PCB
you can take the pcb out and check it for any damage
Sorry but how would i know if the pcb is damaged
check closely...you will see some copper joints are broken or damaged
let me know how it goes
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Have had a look at the pcb and all looks fine
well usually the PCB has a short and will need replacement however, as it appears fine then check the wire harness from the lamp to the pcb...also the damage will be evident once you have it out not prior to that