slow to fire

Old 10-23-08, 07:02 PM
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Cool slow to fire

my weil mclain furnace is hesitating before it fires but not all the time. what could this be
Old 10-23-08, 07:31 PM
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The most common cause of this is electrode adustment or weak transformer. There are many other things such as vacuum, fuel system, OF draft, nozzle, air adjustment just to name a few. Call a tech for this one.

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