i have no heating or hot water from my boiler. It does ignite for a few seconds but dies off and i get flame fault or blocked condensate drain led flashing. I have disconnected the condensate drain and doesnt seem to be blocked so what can it be
try disconnect sencing cable on condesate trap if there is one or senceing cable is sort to earth or disconnected. the fault is flame senceing fail or fault in PCB do need replacing
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