So. We have a relatively modern 3 and a bit year old Hotpoint Fridge Freezer. Wouldn't have been my first choice but ticked the boxes size and layout wise. During the first 12months the PCB failed and was replaced by a grumpy hotpoint man in van who spent 90% of the time telling me he didn't change many of these. All was well until yesterday. SWMBO arrived home to find the sockets all off and the RCD in a stripped condition. After a bit of problem solving she tracked it to the FF. Fault is thus. Power is restored and FF does its usual start up process of making some ticking noises. Not sure exactly what is happening, possibly fan running. Little else happens. About 90-120 seconds later when I'd perhaps expect the motor to run the rcd drops. Though I'm not certain the motor would normally run at this point as I have a suspension that switching it off and on would force a defrost heater cycle, so it may have been the defrost heater coming in. Interestingly if you try to immediately reset the rcd it drops again and will not stay in until you leave it 10-15 seconds. I've had the fridge out and with the fridge unplugged the rcd stays in, wiring and sockets checked. Now its defrosted have had it to bits, both the heaters are giving some resistance but I cant megga them. The evaporator heater shows 460ohms and the drip tray heater 1.6kohms. I can't find anything to earth but that's only with my multimeter. Which brings me to the motor prior to it failing it was running as quiet as ever. it's one of these https://www.espares.co.uk/product/es1087454/fridge-freezer-compressor I was hoping to find a failed smothing cap or something, but there doesn't seem to be one. So what to do. The house and wiring date from 2002, there is no history of nuisance trips. Part of me says replace the rcd with a 80a 100ma unit and see what happens. Ff are notorious for nuisance trips and some folks run an unprotected circuit for them and their noisy motors. But that seems a bit wrong and putting the cart before the horse. Replacing the rcd would probably be cheaper. Try and run the ff with the heaters disconnected to see if there are any hot faults, might have to build some dummy loads to fool the PCB. Replace the damned thing as replacing the motor/compressor at £180 plus labour and regassing doesn't make sense. But then again scrapping a 3yr old fridge doesn't either. Anyway my point of posting here... Could this be an Rcd fault? Do they get more "trippy" with age? It's getting on for 20yrs old (wylex) it seems to cope well with other big loads kicking in and out, cooker, toaster, kettle, dishwasher, washer etc and Ive trid runing a 2kw fan heater from the same outlet.