Boiler Make: Protherm 80e Combi (not 80E)
Problem: Central heating cuts out when display shows temp at 42. Boiler cools down and when display shows 28 the boiler automatically comes back on. Result - the rads go from cold to not cold.
Boiler Fault Code: Don't get one
Domectic hot water works - sometime get F1 fault = Overheating - but this is easily reset using external reset button.
So far I have replaced the Thermistor, cleaned the secondary exchanger , added a cleaner three days ago to remove sludge.
Checked pump - it works
Checked Fan - it works
Anyone got any suggestions what else I should check??
Problem: Central heating cuts out when display shows temp at 42. Boiler cools down and when display shows 28 the boiler automatically comes back on. Result - the rads go from cold to not cold.
Boiler Fault Code: Don't get one
Domectic hot water works - sometime get F1 fault = Overheating - but this is easily reset using external reset button.
So far I have replaced the Thermistor, cleaned the secondary exchanger , added a cleaner three days ago to remove sludge.
Checked pump - it works
Checked Fan - it works
Anyone got any suggestions what else I should check??