York Gas Furnace: TG9S/GY9S Re: No Light on Control Board The LED light on the furnace control board indicates the status of the furnace. In this condition, the light is constantly off. Qty Possible Causes: No Line Voltage 1 Blown Low Voltage Fuse Blown...

Make: York Model or Series: TG9S Type: 90% Furnace, Horizontal Problem Description: Code 3 Pressure Switch Lockouts Observed Symptoms: Furnace runs for a while then locks out. Solution: Installed tee and air vent in rubber drain hose inside the furnace cabinet. Additional...

York Gas Furnace Re: Water Leak / Clear Condensate Pan Covers All of the 33" gas furnaces originally came with a clear, plastic condensate pan cover. Over time, the clear plastic pan has a tendency to crack and cause condensate leakage inside the furnace cabinet. Any clear condensate pans...

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: TG9S/GY9S Re: No Heat - Flashing Code 12 Code 12 = Igniter failure Qty Possible Causes: 1 Bad Glow Plug Bad Control Board CHECKOUT: 1. Check Ignition Sequence If the furnace is running, turn the thermostat off and allow the furnace to cool...