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sim one
Jan 10, 2014, 04:05 PM
Blower fan will not kick on... code on board is pressure switch is open with inducer on

ma0641
Jan 10, 2014, 05:56 PM
The inducer fan closes the pressure switch. Make sure the small tube on the switch is open and that the orifice is open too. Check voltage across the switch. Should be 0 with no inducer and 24 when inducer is running.