Truma ultrastore water heater

[Redlac]

Hi
I have a 2012 bailey pegasus rimini, when I turn the water heater on then the temperature switch it instantly trips the breaker in the house, Can anybody help. I can turn the water heater switch on and all ok, I can turn the temp switch on and all ok , it's only when both are on that it happens.
Thanks guys

 

[Mr Plodd]

By the sounds of it I suspect there is a short in the heater element.
When you turn the power on it sends power to the temp switch, when you turn that on it sends power to the heater element which cuases the house breaker to trip.
If the power switch is off no current goes to the temperature switch, so if you operate that switch no power is sent the heater element!
Time to call an engineer.