hi im having a problem with my ariston microgenus mffi23 combi boiler, lockout led comes on regularly and boiler resets when i press reset button. was advised to change thermistor, is this the DHW temperature sensor? where could i get one please
I have a Ariston microgenus 23KW combi-boiler and it repeatedly shuts down and needs resetting. I have been told by two plumbers that the heat exchanger needs replacing but they dont seem to be able to get a spare. The boiler is 6year old can this part be changed or should I get a new boiler?