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Heatline s24 fan doesn't come on?

Hi I have a problem with my Heatline S24 boiler, The power is on but the fault on air preasure switch light is flashing. after reading the manual several times I have come to the conclusion that even if the switch is faulty the fan should be running when there is a demand for water, but it isn't going. so would the fan being broken give the same fault light?

Peter Johnson
June 2009

Heatline Heating, Home Heating Systems Fan Problem Air

we are an approved agent for heatline , the problem that you have we are almost sure it is the pcb board , part no 3003200010

combi-doc 07956830204
June 2009

I don't know your boiler but the general theme is that the fan runs first and the air pressure switch detects the fan running and the integrity of the case seal - if the switch senses that it's all OK then the lighting up process begins.

No fan = no pressure switch = do not continue firing up.

Peccavi
June 2009

Thanks for the reply
I thought the fan was meant to run tho, I guessed the switch is simply a relay that clicks on when presure is applied to it so i tried manually bypassing it by joining the two wires through a fuse but this had no effect?

Peter Johnson
June 2009

I suspect you have a faulty air pressure switch. Blowing into the air pressure tubes may do the trick. Remember to connect them back the correct way.

j
June 2009