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Had a result thanks to bunnyman and bunny831 swopping thermostat card worked a treat .The only slight prob is it now waits 4-5 min before starts again. Which one of the 3 variable resistor's alters this time?could not find any with plus or minus on didn't want to adjust any now it's...

Hi Please could some one confirm this is the correct PCB No. 252945 for the thermostat card non hybrid version.There is a time delay fault on boiler so I think this card needs to be changed. Thanks for taking time to read .

Time delay fault .I have the above boiler that gets stuck in the time delay loop can someone give me the PCB number that needs changing please I have the non hybrid thermostat type Thanks Paul

Can some give me a little advice I have above boiler that is not giving me Ch when requested off controller But have 240v on pin 4 on PCB but fan does not come on.However if DHW is on and the request for CH is on the CH will come on OK Also when DHW is requested the system pressure on front...

Hi just like to thank every one over the last couple of years with the help they have given me on various posts on problems with above boiler .No dhw on demand !!However was wondering if any vaillant engineers in the wirral area as I have not got the time to spend trying to fixing the boiler...