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Glow worm ultimate 50ff fan comes on for 3 sec and go's off don't ignite?

If the pressure switch hose is disconnected the fan will run but with no ignition. Pressure switch checks out ok ignition coils check out ok. could it be the pcb or ????

Paul T
May 2008

Heating, Home Heating Systems Glow Worm Ultimate

Have tested the aps and it is switching over when the fan comes on and it dose switch when you blow down the hose.

Paul T
May 2008

have you tried to operate the aps by sucking/blowing gently on the hose disconnected from fan to see if it'll start up ignition??

iain
May 2008

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Glow worm ultimate 50ff fan comes on for 3 sec and go's off don't ignite?

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