Truma combi 4 red lights

[Wrighpm]

after 5 minutes 60 deg hot water only setting all goes quiet and red light (not flashing) appears ? any suggestions appreciated.

 

[brucews]

Ours can be temperamental, especially after changing between gas/electric; usually only happens once or twice and I just reset (ie turn off) and try again, usually on the lower setting (40). I would think if yours stops after 5mins, then it may be a fault with the temp sensor on the boiler, which I think you can also reset at the boiler unit.

 

[Wrighpm]

Ours can be temperamental, especially after changing between gas/electric; usually only happens once or twice and I just reset (ie turn off) and try again, usually on the lower setting (40). I would think if yours stops after 5mins, then it may be a fault with the temp sensor on the boiler, which I think you can also reset at the boiler unit.

thank you. My heater is gas only, I think your idea about the temp sensor has some merit, cheers