Hello I wonder if anyone can offer any advice. My usually good 3 year old combi suddenly refused to run, from power up with mode switch on off, it starts the fan and I hear the APS click, at the same time LED flashes red/yellow 4 times before going solid red.
I have checked water pressure/condense trap/piping/air tubes/venturi etc.
If I turn to heating or Dhw nothing happens, if I turn the mode switch to off (reset) LED flashes green briefly.
The fan just runs forever in all modes which doesn't seem right, the fault guide does not help me with this ? all roads seem to point to a very (£210) expensive pcb.
Any help apreciated before I apply for a 2nd mortgage ?
Tony
I have checked water pressure/condense trap/piping/air tubes/venturi etc.
If I turn to heating or Dhw nothing happens, if I turn the mode switch to off (reset) LED flashes green briefly.
The fan just runs forever in all modes which doesn't seem right, the fault guide does not help me with this ? all roads seem to point to a very (£210) expensive pcb.
Any help apreciated before I apply for a 2nd mortgage ?
Tony