Gas Furnace Re: Blown Low Voltage Fuse The low voltage fuse provides protection for the control board and other low voltage components in the case of high amperage caused by a low voltage short or excess component load. ► The fuse must be sized per the "VA" of the transformer. Amps = VA...

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...

York Gas Furnace: TG8S Re: Flashing Code 4 If the limit control opens, the burners will be de-energized and the air circulation and vent blower will be turned on until the limit closes. The diagnostic light code for this is four short flashes followed by a pause. Qty Possible Causes...

York Gas Furnace: TG8S Re: Flashing Code 6 Code 6 = Multiple pressure switch trips during a single call for heat. Qty Possible Causes: Bad Pressure Switch Bad Inducer Motor Restricted Vent 1 Item Stuck in Inducer Motor CHECKOUT: 1. Check...

York 80% Gas Furnace: TG8S Re: Flashing Code 7 / Error Code 7 Flashing Code 7 = Lockout due to ignition retries. ► Code 7 is a Hard Lockout that disables heat operation and must be reset by cycling power to the furnace or by turning the thermostat off and back on. Qty Possible...