Evening, need a bit of help / suggestions on this fault.
Got called to a house which keeps having issues with the main switch MK 63A RCD tripping.
There is a kitchen circuit with only 4 sockets on it. One has freezer and cooker plugged into it, another a fridge and 2 above counter. The cooker works fine 9/10 but occassionally trips when switched on by the cooker controls. The issue is that only the RCD trips (not the breaker) and not all the time.
I had the kettle, toaster, microwave all on and it was fine, then turned them all off and just turned on the kettle and the RCD tripped, then was fine and tripped when toaster was turned on. There seems to be no issue with the appliances as all work fine on other circuits.
I gave the RCD a auto test and ramp test and the RCD would no trip at all and not even at 5x. So i changed the main RCD, but when i powered it back up the main RCD would not reset at all. I turned off all the breakers and it reset and stayed on when i turned on all the breakers back on.
I tried other appliances and the issue was no different, (it would just trip randomly but only when appliances were plugged in), only this time every time the RCD tripped it would only reset if i turned off all the breakers and then reset and turned them back on. The old RCD would just reset after each trip.
The setup is main fuse into meter into stand alone RCD into consumer unit.
Any suugestions would be greatly appreciated.
Sorry if the explanation is a bit confusing.
Got called to a house which keeps having issues with the main switch MK 63A RCD tripping.
There is a kitchen circuit with only 4 sockets on it. One has freezer and cooker plugged into it, another a fridge and 2 above counter. The cooker works fine 9/10 but occassionally trips when switched on by the cooker controls. The issue is that only the RCD trips (not the breaker) and not all the time.
I had the kettle, toaster, microwave all on and it was fine, then turned them all off and just turned on the kettle and the RCD tripped, then was fine and tripped when toaster was turned on. There seems to be no issue with the appliances as all work fine on other circuits.
I gave the RCD a auto test and ramp test and the RCD would no trip at all and not even at 5x. So i changed the main RCD, but when i powered it back up the main RCD would not reset at all. I turned off all the breakers and it reset and stayed on when i turned on all the breakers back on.
I tried other appliances and the issue was no different, (it would just trip randomly but only when appliances were plugged in), only this time every time the RCD tripped it would only reset if i turned off all the breakers and then reset and turned them back on. The old RCD would just reset after each trip.
The setup is main fuse into meter into stand alone RCD into consumer unit.
Any suugestions would be greatly appreciated.
Sorry if the explanation is a bit confusing.