Dear Kevplumb
Please have a look at my posting and any comments would be appreciated, I need advice from someone with experience of this older combi model
Vaillant Compactcombi 242 eh - No heating
Ta
Damien
Tony, thanks for your input
Pressure 1.0 bar constant
Had flame supervision board replaced 6 mths ago following identical prob
After thorough insp by combi engineer, he suggested possible PCB fault ashe could'nt put it down to any other cause, as Flame suppervision board seemed most...
Help - 14 yr old compactcombi Vaillant 242 eh
DHW - works fine
Heating - when switched on, fan runs, pump runs but no sparking hence no flame ignition
If I carry out a reboot i.e, with the Boiler on and the Heating/DHW switch on DHW only, I then switch off main power supply to boiler, then...