York Gas Furnace: P3UR Re: Physical Data Model AFUE Temp Rise Motor Blower 40 92.4% 35-65 deg. 1/3 hp 10x6 60 92.2% 45-75 deg. 1/3 hp 10x6 80 92% 35-65 deg. 1/2 hp 11x8 80 94.3% 30-60 deg. 3/4 hp 11x8 100 92.2% ...

York Gas Furnaces: P3URC Re: Diagnostic/Lockout Codes This York gas furnaces has a control board inside the furnace blower compartment that will flash a diagnostic code that shows the operating status of the furnace. Diagnostic Codes: Steady On Red Control failure ...

York Gas Furnace: P3UR Re: No Heat Call - Heat is Operating The customer called and reported a, "No Heat" but when the technician arrived the system was operating. There are (2) Furnace Faults that will Auto-Reset after 1-Hour*: Code 6 = Multiple Pressure Switch Openings Code 7 =...

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: P3UR / P3DH Re: Flashing Code 2 Code 2 = Pressure switch stuck closed The furnace pressure switch should only close when the inducer fan output is energized. If control board is not energizing the inducer fan output and the pressure switch circuit is closed, the board will...

York 90% Gas Furnace: P3UR Re: Flashing Code 3 Code 3 = Furnace Pressure Switch failed to close on a call for heat. Qty Possible Causes: 2 Bad Inducer Motor 1 Bad Pressure Switch 1 Clogged / Frozen Drain 1 Pressure Hose Problem 2 Item Stuck in...

York 90% Gas Furnace: P3UR Re: Flashing Code 6 Code 6 = Multiple Pressure Switch Openings on a call for heat. Qty Possible Causes: Water in the vent (improper slope) Water in inducer (clogged drain) Restricted Intake 1 Bad Pressure Switch 1 ...

York Gas Furnace: P3UR Re: No Heat - Code 7 (Assuming original control board) Code 7 = Failure to Sense Flame Qty Possible Causes: 2 Dirty Flame Sensor 2 Bad Glow Plug Clogged Burners 1 No or Low Gas Pressure Bad Gas Valve CHECKOUT: ...

Gas Furnace Re: Making Loud Noise While Heating Noises from equipment can be very difficult to identify unless something is obviously broken. Be sure to work with the customer to identify the noise they are hearing. Qty Possible Causes: 1 Bad Inducer Motor Bad...

Gas Furnace Re: Blower Motor Not Running The furnace control board energizes the fan motor through line-voltage outputs for both heating and cooling. There are two fan speed outputs on the control board: Cool and Heat On a call for cooling "Y", the control board should immediately...