My mums boiler is playing up,hot water is fine but on heating nothing is happening.
I have checked the pump impeller is spinning but thats as far as i can go w/out replacing parts.
Its a Potterton 80e
T I A
Like the heading says when ever the boiler decides it goes into test mode sometimes forgetting to end the T mode by itself.
Its an isar He35 that otherwise runs Ok except when in Dhw mode the rads heat up is this normal for this boiler or is the motorised valve playing up :?