Immersion Heater trips out my RCD

[Softus]

Thanks Tony, I thought I might have been going mad...

Last week I went to replenish stock and bought two of each length, and stared at the counter bloke when he gave me the old type. When I asked why he wasn't selling resettable ones he said I hadn't asked for them

 

[PEDANTICVINDICTIVEMAN]

So just to re-cap, the RCD trips when you flush the toilet, does this happen for big jobs and little jobs and on small flush or full flush, did you fit a new thermostat between the pan and the cistern and set it to 55deg.

 

[Softus]

It was the flow switch, PVM