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Y91E - Flashing Code 4
York Gas Furnace: Y91E Re: Flashing Code 4 Code 4 = Main limit switch has opened its normally closed contacts. The control will operate the supply air blower and inducer while the open limit condition exists. ► If the limit switch has not closed within five minutes, the control will assume...
20 Jan, 2025
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GMS9 - Flashing Code 3
Goodman Gas Furnace: GMS9 Re: Flashing Code 3 If, after the vent 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. ► There are 2...
15 Jan, 2025
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TG9S/GY9S - Flashing Code 3
York 90% Gas Furnace: TG9S Re: Flashing Code 3 Code 3 = Furnace Pressure Switch failed to close on a call for heat. ►The code description on the blower door says, "Vent or Termination Problem" which is a possible cause, but not the most likely. This gas furnace has two pressure switches: ...
13 Jan, 2025
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GKS9 - Flashng Code 3
Goodman Gas Furnace: GKS9 Re: Flashing Code 3 If, after the vent 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...
13 Jan, 2025
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GKS9 Fault Codes / Lockout Codes
Goodman Gas Furnace: GKS9 Re: Lockout Codes # of Flashes Description Off No Power or Faulty Control On Normal Operation 1 Ignition lockout (3 failed tries) - 1hr Auto Reset 2 Pressure switch stuck closed 3 Pressure switch stuck open 4 ...
13 Jan, 2025
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D2NP - Flashing Code 2
Package Unit: D2NP Re: Code 2 CODE 2 = Pressure switch "Open" with the inducer motor energized. Qty Possible Causes: 1 Bad Inducer Motor Bad Pressure Switch 1 Clogged Pressure Port Item Stuck in Inducer Wheel 1 Bad Ignition Control Board ...
9 Jan, 2025
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T6 Pro - 2Ht/1Cl Heat Pump Setup
Honeywell Thermostat: TH6220U T6 Pro Re: 2Ht/1Cl Heat Pump Setup To enter Installer Setup: Press and hold the "Center" button and the "+" button together for 3 seconds. Press "Select" to enter Setup. Press "Select" to cycle through setup options. Press "+" or "-" to change values. Press...
8 Jan, 2025
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GPG13 - Flashing Code 1
Goodman Package Unit: GPG13 Re: Flashing Code 1 / Won't Ignite Code 1 = 3 Failed Ignition Attempts ► A Manual-Reset Auxiliary Limit and Roll-Out Limit are wired in series with the gas valve and will cause a Fault Code 1. Qty Possible Causes: Dirty Flame Sensor Bad...
8 Jan, 2025
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GPG14 - Flashing Code 1
Goodman Package Unit: GPG14 Re: Flashing Code 1 / Won't Ignite Code 1 = 3 Failed Ignition Attempts Qty Possible Causes: Dirty Flame Sensor 1 Bad Control Board Low / No Gas Bad Gas Valve 2 Bad Spark Electrode or Spark Wire CHECKOUT:...
8 Jan, 2025
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Heat Pump - Low Heat
York Heat Pumps: Heating Re: Low Heat The customers reports that the heat pump doesn't provide enough heat and that they only get warm air when the auxiliary heat kicks on. Other symptoms include: Higher than normal electric bill; System runs continuous. Qty Possible Causes: 1...
2 Jan, 2025
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GPG13 - Flashing Code 4
Goodman Package Unit: GPG13 Re: Flashing Code 4 If the limit control opens, the burners will be de-energized and the air circulation and vent blower will be powered until the limit closes. The diagnostic light code for this is four short flashes followed by a pause. ► The diagnostic code...
2 Jan, 2025
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YHJF - Defrost Problem/Outdoor Coil Frozen
York Heat Pump: YHJF24 - 48 Re: Not Defrosting / Frozen The YHJF 2 to 4 Ton models use a Demand Defrost control board (the 5 Ton model uses a Yorkguard VI) The defrost board uses an Ambient (outdoor) Sensor and Liquid Line Sensor to determine the proper conditions for defrost to occur. ...
20 Dec, 2024
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GMH95 / GCH9 - Flashing Code 3
Goodman Gas Furnace: GMH95 / GCH9 Re: Flashing Code 3 Code 3 = Pressure Switch failed to close with the inducer energized. ► There are 2 Pressure Switches in the furnace. Only the Inducer Pressure Switch will cause a Code 3. The Drain Pressure Switch (labeled as Front Cover Switch) breaks...
17 Dec, 2024
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P3DH - Flashing Code 3
York Gas Furnace: TM9X/TM9E Re: Flashing Code 3 Code 3 = Furnace Pressure Switch failed to close on a call for heat. This gas furnace has two pressure switches (1LP & 2LP) - a higher pressure switch to monitor the negative pressure at the inducer motor, and a lower pressure switch to...
10 Dec, 2024
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Y91E Diagnostic Codes / Fault Codes
York Gas Furnaces: Y91E Re: Diagnostic Codes / Fault Codes These York gas furnaces have a control board inside the furnace blower compartment that will flash a diagnostic code that shows the operating status of the furnace. Diagnostic Codes: Slow Green Normal Operation - no...
5 Dec, 2024
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PMPD - Flashing Code 3
York 90% Gas Furnace: P*MPD Re: Flashing Code 3 Code 3 = Furnace Pressure Switch failed to close on a call for heat. This gas furnace has a single pressure switch which monitors for proper venting. Qty Possible Causes: 1 Bad Inducer Motor 1 Bad Pressure Switch ...
29 Nov, 2024
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TM9X/TM9E - Flashing Code 4
York Gas Furnace: TM9X / TM9E Re: Flashing Code 4 Code 4 = Main limit switch has opened its normally closed contacts. The control will operate the supply air blower and inducer while the open limit condition exists. ► If the limit switch has not closed within five minutes, the control will...
21 Nov, 2024
Comments: 0
AHX/MX Air Handler - Flashing Code 6
York Air Handler: AHX / MX Re: Flashing Code 6 A Fault Code 6 results from the following sequence of conditions: If the limit switch opens for a long duration (Fault Code 4), the control will energize the blower until power is removed from the control (heat outputs will continue to cycle as...
20 Nov, 2024
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GMES96 - Flashing Code 3
Goodman Gas Furnace: GMES96 Re: Flashing Code 3 Code 3 = Pressure Switch failed to close with the inducer energized. ► There are 2 Pressure Switches in the furnace. Only the Inducer Pressure Switch will cause a Code 3. The Drain Pressure Switch (labeled as Front Cover Switch) breaks power to...
8 Nov, 2024
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GMES96 - Flashing Code 1
Goodman Gas Furnace: GMES96 Re: Flashing Code 1 / Won't Ignite Code 1 = 3 Failed Ignition Attempts ► Be aware that the furnace Condensate Pressure Switch (Front Cover Pressure Switch) breaks power to the gas valve and will cause a Fault Code 1 (Does not cause a Code 3). Qty Possible...
8 Nov, 2024
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DNQ - V/S Motor Not Running - Heating
York Package Unit: DNQ Re: Variable Speed Blower Not Running - Heating The unit is calling for either Heating, but the indoor blower is not operating. Qty Possible Causes: 4 Bad Blower Motor/Controller Bad ECM Control Board Tripped Breaker Bad/Burnt...
25 Oct, 2024
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DNQ - V/S Motor Not Running - Cooling
York Package Unit: DNQ Re: Variable Speed Blower Not Running - Cooling The unit is calling for either Fan or Cooling, but the indoor blower is not operating. Qty Possible Causes: 4 Bad Blower Motor/Controller Bad ECM Control Board Tripped Breaker ...
25 Oct, 2024
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Troubleshooting V/S Blower Motor
York Package Unit: DNQ Re: Troubleshooting Variable Speed Blower Motor These package units use a 16-Pin Variable Speed Motor Control Module. Pin Designation 1 24V Common 2 W1 3 24V Common 4 DELAY Setting 5 COOL Setting 6 Y/Y1 7...
25 Oct, 2024
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Customer-Created Password
Honeywell Thermostat: TH8320R & TH8321R VisionPro Re: Customer-Created Password The customer has the option to create a new password. From the thermostat Home Screen press the Menu tab. Scroll down to highlight Security Settings and press Select. Scroll down to Create Password and...
25 Oct, 2024
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PCG4 - Flashing Code 7
York Package Gas/Electric: PCG4 Re: Flashing Code 7 Code 7 = Failure to Sense Flame (3 Failed Ignition Attempts) Qty Possible Causes: 1 Dirty Flame Sensor Bad Glow Plug 1 Clogged Burners 1 No or Low Gas Pressure 1 Bad Gas Valve Bad...
21 Oct, 2024
Comments: 0
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