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Climatemaster - Code 2 / High Pressure Fault - Cooling
Climatemaster Geothermal: TT/TS Re: Code 2 / High Pressure Fault - Cooling Code 2 = High Pressure Fault ► There may be (2) Water Pressure Switches wired in series with the refrigerant High Pressure Switch. ► When the high pressure switch opens due to high refrigerant pressures the...
16 Jul, 2024
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Gas Furnace - Won't Come On/No Heat
Gas Furnaces Re: Furnace Won't Come On / No Heat This condition is generally reported two different ways by the customer: "The furnace won't do anything." - Indicating that there is no activity from the furnace on a call for heat. "The furnace makes a noise, but it never blows-out hot...
29 May, 2024
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Aaon WSHP Lockout Codes
Aaon Water-Source Heat Pump: WHA Re: Diagnostic Codes / Error Codes / Fault Codes The Red fault light will flash to indicate fault status. Red Flashes Description 1 High Pressure Switch Fault 2 Emergency Shutdown 3 Auxiliary Alarm 4 Condensate Overflow...
15 May, 2024
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Climatemaster - Code 3 / Loss of Charge
Climatemaster Geothermal: Heating / Cooling Re: Code 3 / Loss of Charge Code 3 = Low Pressure Fault The low pressure switch must be open and remain open for 30 continuous seconds during an “on” cycle to be recognized as a low pressure fault. If the low pressure switch is open for 30...
9 May, 2024
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YEE - Fault Code 5 (Heating)
York Heat Pump: YEE Re: Low Suction Pressure - Code 5 (Heating) CODE 5 = Low Pressure Switch Opened (2x in 6 hours) Qty Possible Causes: 2 Low Refrigerant Charge Bad Expansion O/D Valve Bad Pressure Switch Not Defrosting CHECKOUT: 1....
30 Apr, 2024
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TM9X/TM9E - Flashing Code 7
York Gas Furnace: TM9X/TM9E Re: Flashing Code 7 Code 7 = Failure to Sense Flame (3 Failed Ignition Attempts) Qty Possible Causes: 1 Dirty Flame Sensor 1 Bad Glow Plug 1 Clogged Burners 1 No or Low Gas Pressure 1 Bad Gas Valve Bad...
25 Apr, 2024
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TUH2/TDH2 - Diagnostic Codes
Trane Gas Furnaces: TUH2/TDH2 Re: Furnace Lockout Codes / Diagnostic Codes INTEGRATED FURNACE CONTROL - ERROR CODES Flashing Slow Normal - No call for heat Flashing Fast Normal - Call for heat On Replace Control Off Check Power 2 Flashes Lockout...
10 Apr, 2024
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GR6GD Fault Codes/Status Codes
Nordyne / Partners Choice - GR6GD Re: Lockout Codes / Status Codes Red Light Status Description 1 Limit Circuit Open 2 Pressure switch stuck open 3 Pressure switch stuck closed 4 Ignition failure 5 Reversed Polarity Continuous Flash ...
9 Apr, 2024
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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: ...
5 Apr, 2024
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PAR-FL32MA - Mode Selection Adjustment
Mitsubishi Re: Remote Control - Mode Selection The number of controlled Modes is adjustable through the remote control. Follow the following steps to set the Mode options. Step 1: Press the SET button with a pointed but not sharp object. Make sure that the remote controller display...
20 Mar, 2024
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Yorkguard VI - Low Discharge Temperature (Heating)
York Heat Pump: Yorkguard VI Re: Low Discharge Temperature (Heating) The status lights on the module will indicate as follows: Red = On, Green = 6 Flash. If, after energizing the compressor contactor for 1 hour, the Yorkguard module senses a compressor discharge temperature lower than 90...
19 Mar, 2024
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Climatemaster - Code 4 / LT1 Fault - Heating
ClimateMaster Heat Pump: Heating Re: Code 4 / LT1 Fault Code 4 = Low Water Coil Temperature (FP1 or LT1) The LT1 thermistor temperature must be below the selected low temperature limit setting* for 30 continuous seconds during a compressor run cycle to be recognized as a LT1 fault. ...
18 Mar, 2024
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Bosch M15G - P2 Fault / H5 Fault (Heating)
Heat Pump: Bosch M15G Re: P2 Fault / H5 Fault (Heating Mode) P2 Fault = Low Pressure Protection (Heating or Cooling) H5 Fault = P2 Fault occurred 5 times in 100 minutes or runtime (Requires Power Reset) Qty Possible Causes: Low Refrigerant Charge Bad O/D Fan Motor...
11 Mar, 2024
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Bosch - Fault Codes
Bosch Heat Pump: M15, M18, M20 Re: Fault Codes / Status Codes Fault Code Display Fault Code Fault Description C3 The coil sensor (T3) is seated fault in Cooling E4 Temperature Sensor Fault (T3, T4, T3L, T5 or TF) E5 High or Low Voltage Protection E6...
11 Mar, 2024
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Bosch - Parameter Point Check Table
Bosch Heat Pump: M15, M18, M20 Re: Parameter Point Check Table To display system parameters, press the “Check” button to index through the series of parameters available. The first time you press the “Check” button, it will display the sequence, and after 1 second it will display the value of...
11 Mar, 2024
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AHX/MX Air Handler - Flashing Code 3 - Fan Running Continuous
York Air Handler: AHX/MX Re: Flashing Code 3 - Fan Running Continuous The control board in the air handler monitors the limit switch in the aux heaters. If the limit switch opens multiple times during a single call for electric heat the control will flash a Code 3 and energize the blower...
27 Feb, 2024
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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...
19 Feb, 2024
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TM9Y - Flashing Code 6
York Gas Furnace: TM9Y 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. ► There are 3 pressure switches on this furnace. PS1 (1st Stage Switch usually .90") and PS3 (Condensate...
19 Feb, 2024
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Honeywell T6 Pro - Screen Lock
Honeywell Thermostat: T6 Pro Re: How to Unlock the Screen The T6 Pro thermostat has the ability to lock the screen. ► The options are either "PART" for a partial lock, "ON" for full lock, or "OFF" for no lock. To LOCK the screen: From the Home screen, press the Menu button. Press the...
16 Feb, 2024
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YZH - Outdoor Fan Not Operating
Heat Pump: YZH Re: Outdoor Fan not Operating YZH heat pumps are equipped with a YorkGuard VI module which monitors and controls unit operation and defrost. The factory-installed outdoor fan motor is an ECM motor with a remote motor module controlled by a direct 24VAC signal. The motor...
6 Feb, 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...
29 Jan, 2024
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RTH6580 Setup Optipns
Honeywell Thermostat: RTH6580 Wi-Fi FocusPro Re: Installer Setup Options To enter Installer Setup, press and hold the "Fan" button and the "Up" button together for at least 3 seconds until the display changes. Setup# Function Options 1 System Type 0 = Gas, oil or...
18 Jan, 2024
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N95ES Fault Codes/Diagnostic Codes
Heil N95ES Gas Furnaces Re: Lockout Codes / Diagnostic Codes Each of the following status codes is a Single or 2-digit number. ► The first digit is determined by the number of SHORT flashes and the second digit is determined by the number of LONG flashes. ► For Example: 1-Short Flash,...
16 Jan, 2024
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PHE - Defrost Problem / Outdoor Coil Frozen
York Pkg Heat Pump: PHE Re: Not Defrosting / Outdoor Coil Frozen The PHE uses a Demand Defrost control board. The board uses an Ambient (outdoor) Sensor and Liquid Line Sensor to determine the proper conditions for defrost to occur. Qty Possible Causes: Bad Liquid Line Sensor...
8 Jan, 2024
Comments: 0
TUX2/TDX2 - Lockouot Codes/Fault Codes
Trane Gas Furnaces: TUX2/TDX2 Re: Furnace Lockout Codes / Fault Codes INTEGRATED FURNACE CONTROL - ERROR CODES On Internal GV error or low TH voltage Off Check Power 2 Flashes Lockout due to re-tries (flame failure) 3 Flashes Pressure switch fault (open or...
3 Jan, 2024
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