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Mend Potterton Combi 100 Boiler Overheat Diverter

potterton combi 100 overheat kees trip when turn tap off.burner on/off ok?

diverta & o/heat been changed still trip o/heat once hot tap turned off.could it be anything else apart from blockage

greg blackman
March 2007

Potterton Potterton Combi 100 Heating, Home Heating Systems Boiler Overheat Diverter

You probably have a water leak in the system somewhere that is causing a demand for heat. I have a potterton 100 combi and this was the cause of a similar problem.
Check all taps are off and not leaking and check all water pipe connections on boiler arent leaking.

CJ
March 2007

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Potterton Combi 100 Overheat - Help & Advice