our worcester 28cdi combi boiler will not egnite.system pressure was down to 1 bar,opened both valves,now up to 1.5 bar but still wont start.ingition lockout,done what manual advises,any advice.
if its a single click only, its the aps switching, and the problem lies with the ignition system (either the electrodes, wires, or pcb)
if you hear a constant few seconds of clicking, the problem is either the gas valve or again a pcb problem (odds on gas valve though)
T
June 2008
can hear click as if boiler trying to ignite but not happening.could it be problem with gas valve ?
gav
June 2008
call your serviceman, could be any number of things, unless you can give us lots more detail of what is happening during the ignition sequence (ie, pump runs, fan runs, aps makes...etc)
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