Article ID: 201
Last updated: 30 Oct, 2017
York Gas Furnace: TG8S Re: Flashing Code 3 If, after the induced draft blower is energized, the pressure switch does not close, the control will keep the blower on and wait for the switch to close. The diagnostic code for this problem is 3 short flashes followed by a pause. ► The diagnostic code will go away once the pressure switch closes.
CHECKOUT: 1. Check Control Board
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Article ID: 201
Last updated: 30 Oct, 2017
Revision: 7
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