Help with the above fault.
The boiler works fine on DHW but when on heating, the boiler fires for a minute or so, then goes off. If you turn off and reset, same happens again. Suspect Thermistor. The boiler is 4 1/2 years old. The boiler goes through all the correct procedure, just doesn't stay lit on CH.
The thermistors dont look too old, records show a thermistor fitted by Ravenheat under varranty in 2006.
Thanks in advance.
The boiler works fine on DHW but when on heating, the boiler fires for a minute or so, then goes off. If you turn off and reset, same happens again. Suspect Thermistor. The boiler is 4 1/2 years old. The boiler goes through all the correct procedure, just doesn't stay lit on CH.
The thermistors dont look too old, records show a thermistor fitted by Ravenheat under varranty in 2006.
Thanks in advance.
