plate heat exchanger is in good condition, water flows through both sides fine.
I have checked the incoming electrical connections and they are also fine.
A new PCB and Temp sensor are in the post so should be with me hopefully by the end of the week!
The boiler is just under 2 years old.
mechanically the boiler is pretty spot on, plate heat exchanger is fine.
Think i will order new PCB on Tuesday, and just in case a CH thermistor.
If anyone has any other ideas i will give them a go!
I have a Main Combi 24 HE. The central heating seems ok, but the hot water is playing up. When i run the hot tap the boiler fires up fine, all valves work as they should, but after about 4-5 seconds the boiler seems to reset, all the lights on the front go out (no fault lights flashing) then...