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Sanyo - Technical Support
Sanyo Variable Refrigerant Flow Re: Technical Support Sanyo was bought by Panasonic. For Technical Assistance / Support: PH: 800-851-1235
27 Feb, 2025
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TM9X/TM9E - 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 (PS1 & PS2) - a higher pressure switch to monitor the negative pressure at the inducer motor, and a lower pressure switch to...
18 Feb, 2025
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TM9Y - Flashing Code 3
York Gas Furnace: TM9Y Re: Flashing Code 3 Code 3 = The normally open (PS1 or PS3) pressure switch contact did not close after the inducer was energized. ► This is a "Soft Lockout" which will automatically reset after 1 hour. ► There are 3 pressure switches on this furnace. PS1 (1st Stage...
18 Feb, 2025
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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...
18 Feb, 2025
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TG9S/GY9S - Flashing Code 6
York Gas Furnace: TG9S/GY9S Re: Flashing Code 6 Code 6 = Pressure switch opened (Code 3) 4 times during a run cycle. ► This is a "Soft Lockout" which will automatically reset after 1 hour. Qty Possible Causes: 3 Water in Inducer 1 Improper Condensate Drainage 1 ...
18 Feb, 2025
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TM9X/TM9E - Diagnostic Codes
York Gas Furnaces: TM9X/TM9E 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. !! Do Not go by the Fault Descriptions on the blower door -...
14 Feb, 2025
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TM8E Diagnostic Codes / Fault Codes
York Gas Furnaces: TM8E 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. !! Do Not go by the Fault Descriptions on the blower door - they are...
14 Feb, 2025
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TM9T - Flashing Code 3
York Gas Furnace: TM9T Re: Flashing Code 3 Code 3 = The normally open (1LP or 3LP) pressure switch contact did not close after the inducer was energized. ► This is a "Soft Lockout" which will automatically reset after 1 hour. ► There are 3 pressure switches on this furnace. 1LP (1st Stage...
13 Feb, 2025
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Rheem RPNL / RPQL - Low Pressure - Code L21 - Heating
Rheem Heat Pump: RPNL / RPQL Re: Heating - Low Pressure Lockout - Code L21 These heat pump models have a control board which monitors equipment operation. If the low pressure switch trips three times during a run-cycle, a "Hard-Lockout" Code L21 is generated and must be manually reset. ...
12 Feb, 2025
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Rheem RPNL / RPQL - Low Pressure - Code L21 - Cooling
Rheem Heat Pump: RPNL / RPQL Re: Cooling - Low Pressure Lockout - Code L21 These heat pump models have a control board which monitors equipment operation. If the low pressure switch trips three times during a run-cycle, a "Hard-Lockout" Code L21 is generated and must be manually reset. ...
12 Feb, 2025
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TM9Y Diagnostic Codes / Fault Codes
York Gas Furnaces: TM9Y 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...
10 Feb, 2025
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Yorkguard - Flashing Code 5
York Heat Pump: EFH Re: Flashing Code 5 Code 5 - Defrost Fault (Going into defrost too often). These units use a Yorkguard Demand Defrost control board. The board uses an Ambient (outdoor) Sensor and Liquid Line Sensor to determine the proper conditions for defrost to occur. ► If the board...
6 Feb, 2025
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YZE/YZH - High Discharge Temperature (Heating)
York Heat Pump: YZE/YZH Re: High Discharge Temperature Fault (Heating) A High Temperature Lockout is indicated by the following LED pattern on the outdoor unit control board: Green = 5 Flashes Red = On X/L Output 2 Flashes at Thermostat = Soft Lockout Locked-out two times in 6...
4 Feb, 2025
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4YCC4 - Flashing Code 4
Trane Package Unit: 4YCC4 Re: Flashing Code 4 Code 4 = High Limit or Roll-Out Switch Open * After 4 limit trips during a single call for heat, the control will enter a 1-Hour Soft Lockout and flash Code 4. Qty Possible Causes: Dirty Filter Bad Blower Motor ...
3 Feb, 2025
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MUZ-GE - Testing Outdoor Fan
Mitsubishi MUZ-GE Re: Test Outdoor Fan Motor The unit uses a DCV 3-Phase fan motor. 1. Test Winding Resistance Disconnect power to the outdoor unit. Wait at least 30 seconds for the capacitors to discharge. Disconnect the leads to the fan motor (Red, White & Blk). Test resistance...
31 Jan, 2025
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YHJF - High Pressure Lockout - Heating Mode
York Heat Pump: YHJF Re: High Pressure Lockout - Heating Mode The heat pump was running in normal heat mode (not in defrost) and the high pressure switch tripped. Qty Possible Causes: 1 Refrigerant OverCharge 1 Bad O/D Expansion Valve Bad Blower Motor /...
30 Jan, 2025
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Yorkguard VI - High Pressure Lockout - Heating
York Heat Pump: Heating Re: High Pressure Fault - Last Mode Heat Pump The heat pump was running in normal heat mode (not in defrost) and the high pressure switch tripped. A High Pressure Lockout is indicated by the following LED pattern on the outdoor unit control board: Green = Off Red...
30 Jan, 2025
Comments: 0
YHE/YHG - Code 3 - High Pressure - Heating
York YHE / YHG Heat Pump: Heating Re: High Pressure Fault - Last Mode Heat Pump The heat pump was running in normal heat mode (not in defrost) and the high pressure switch tripped. A High Pressure Lockout is indicated by a 3-Flash LED pattern on the outdoor unit control board. Qty ...
30 Jan, 2025
Comments: 0
YZF - High Pressure Fault (Heating)
York Heat Pump: YZF Re: High Pressure Fault (Heating) The heat pump was running in normal heat mode (not in defrost) and the high pressure switch tripped. A High Pressure Lockout is indicated by the following LED pattern on the outdoor unit control board: Green = Off Red = 2 Flashes X/L...
30 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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