Potterton Suprima 50l tripping rcd switch

[T33nwolf]

Hi

I wondered if anybody could help or provide me with a little advice.
I have read all about the lockout problems on this model and have experienced those first hand but now im having another issue.

last week i started to loose power in my house at random times during the morning and evening. this was a result or the rcd circuit switch being tripped. I did all the usual unplug appliances and slowly test. It soon became apparent that the boiler is tripping the switch.

The boiler comes on at the scheduled time, fires up ok and is fine for about 5 mins, it then trips the whole house,it is wired through a fuse spur point but that seems to remain ok and it is just tripping th rcd directly.

Anybody got a clue why or experienced this and know what to do?

Thanks in advance

Tim

 

[cider]

could be components in the boiler or what i would lay a bet on, the diverter valve leaking when hot and causing a short in the actuator.

 

[powell30]

...or dripping onto pump.

 

[T33nwolf]

ok a little bit more information, i have checked all the boiler itself and the pump/cylinder and can't find anywhere that is dripping. I ran the boiler last night as a test and the results were:

Boiler fired up and ran for about 10-15 mins then tripped the rcd, i turned back on and the boiler fired up again but this time tripped within 2 mins!