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

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