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Climatemaster Diagnostic Codes
Geothermal Heat Pump: Climatemaster Re: Diagnostic Codes CXM Board - Most older Climatemaster Geothermal heat pumps use the CXM Control Board. The CXM board has a diagnostic function that will cause the unit to go into a "lockout" if an abnormal operating condition occurs. When the CXM...
6 Apr, 2017 Comments: 0
York Furnace Lockout and Diagnostic Codes
York Gas Furnaces Re: Lockout Codes Most 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 call for heat Slow...
14 Feb, 2017 Comments: 0
Fujitsu - Error A1
Fujitsu Mini-Split Re: Error A1 Error Code A1 = High Compressor Discharge Temperature Also indicated on the control board by 10 Green flashes and 1 Orange flash. Qty Possible Causes: 3 Low Refrigerant Charge Bad Sensor CHECKOUT: 1. Check Unit...
5 Feb, 2022 Comments: 0
Waterfurnace - Fault Codes
Geothermal Heat Pump: Waterfurnace Re: Diagnostic Codes These units can have either an Aurora Base Control (ABC) or an Aurora Expansion Board (AXB). The ABC board has a diagnostic function that will cause the unit to go into a "lockout" if an abnormal operating condition occurs. When the...
19 Apr, 2017 Comments: 0
Trane GAM5 - Status/Error Codes
Trane Air Handler: GAM5 Re: Status Codes / Error Codes / Fault Codes EVC STATUS LED Flash Description 1 Cool Mode - No Active Call 3 Cool Mode - Active Call for Cooling or Defrost 4 Heat Mode or Off - No Active Call 6 Heat Mode - Active Call for...
1 Sep, 2017 Comments: 0
York Sensor Resistance Chart
Sensor Resistance All of York's sensors are the same resistance - 10K Ohm. Temp Ohms Temp Ohms Temp Ohms Temp Ohms 0 85,371 50 19,896 100 5,827 150 2,041 5 75,230 55 17,434 105 5,208 155 1,854 10 62,499 60 15,310 110 ...
6 Apr, 2023 Comments: 0
T4 Pro - Installer Setup options
Honeywell Thermostat: TH4110U T4 Pro Re: Installer Setup Options 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...
15 Aug, 2017 Comments: 0
Ultra 1 & 2 - Status & Fault Codes
Weil-Mclain Boilers: Ultra Re: Status & Fault Codes The Ultra Series 1 & Series 2 boilers have a 4-digit display for monitoring operating status & fault codes. OPERATING STATUS After the display shows "Stby" for a brief period, the first character shows boiler status,...
30 Jan, 2017 Comments: 0
Climatemaster - Code 5 / LT2 Fault - Cooling
ClimateMaster Heat Pump: Cooling Re: Code 5 / LT2 Fault Code 5 = Low Air Coil Temperature (FP2) The FP2 thermistor temperature must be below the selected low temperature limit setting (30 deg. unclipped) for 30 continuous seconds during a compressor run cycle to be recognized as a FP2...
8 Feb, 2023 Comments: 0
350MAV - Flashing Code 31/Fault Code 31
Carrier 90% Gas Furnace: 350MAV Re: Flashing Code 31 / Fault Code 31 Diagnostic Light Sequence: 3-Short Flashes, 1-Long Flash (- - - , —) ► On Carrier 90% Furnaces, the Pressure switch may be wired in series with a Low Gas Pressure Switch. Therefore, a Fault Code 31 is caused by one of the...
4 Mar, 2021 Comments: 0
White-Rodgers Lockout Codes
WHITE-RODGERS FURNACE CONTROL - LOCKOUT CODES When system lockout occurs, the gas valve is de-energized, the circulator blower is energized at HEAT speed, and, if flame is sensed, the inducer blower is energized. The diagnostic indicator light will flash or glow continuously to indicate system...
16 Jan, 2017 Comments: 0
Heat Pump - Low Pressure Fault - Heating
Heat Pump: YorkGuard VI Re: Low Pressure Fault - Heating These heat pumps are equipped with a YorkGuard VI module which monitors and controls unit operation and defrost. A Low Pressure Fault is indicated by the following LED pattern on the outdoor unit control board: Green = Off Red = 4...
27 Feb, 2018 Comments: 0
Goodman Time & Temp Defrost Board
Goodman Heat Pump: GS13 Re: Time & Temperature Defrost Board The Goodman GS13 Heat Pump uses a Time & Temperature Defrost Board. A defrost thermostat mounted to the outdoor coil closes at approximately 30 deg. and opens at approximately 60 deg. An adjustable setting on the board...
14 Mar, 2017 Comments: 0
Sanyo VRF - Error Code E04
Sanyo Variable Refrigerant Flow Re: Error Code E04 / Fault Code E04 Error Code E04 = Number of detected indoor units does not match the quantity of indoor units set on the outdoor unit control board. Possible Causes (From Most to Least Likely): Indoor Unit(s) Powered Off Break in...
16 Jan, 2017 Comments: 0
YP9C - Diagnostic Codes/Fault Codes
York Gas Furnaces: YP9C Re: Diagnostic/Fault Codes These York modulating 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: 1 Green Normal Operation - no...
8 Feb, 2019 Comments: 0
TG9S - Diagnostic Codes / Fault Codes
York Gas Furnaces: TG9S 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...
19 Nov, 2021 Comments: 0
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...
8 Feb, 2023 Comments: 0
R22 Cooling - Low Suction Pressure
Heat Pump: Cooling Re: Low Suction Pressure A heat pump or air conditioner runs with a lower-than-normal suction pressure. Customer typically reports low or no cooling. Qty Possible Causes: Low Refrigerant Charge 1 Bad Expansion Valve Low/No Airflow ...
29 Sep, 2017 Comments: 0
S8610U Diagnostic Codes / Fault Codes
Honeywell: S8610U Re: Diagnostic Codes / Fault Codes # of Flashes Description Off No Call for Heat Fast Flash Power-up - Internal Check Heartbeat Normal Operation - Heating 2 Pilot flame not detected - 5 min retry delay 3 Flame failed during a...
9 Nov, 2021 Comments: 0
York Yorkguard VI Status and Fault Codes
Yorkguard VI will energize the X/L terminal to flash a light at the thermostat to notify the homeowner of a problem with the heat pump. Fault Code Memory: The control will store the last 5 error codes. As new error codes are stored, the oldest is deleted. The stored error codes can be...
7 Nov, 2017 Comments: 0
Nordyne , Kenmore or Gibson Gas Furnace Diagnostic Codes
Gas Furnace: G6R, GM Re: Lockout Codes Red Light Description On Power On 1 Limit switch open 2 Pressure switch stuck open 3 Pressure switch stuck closed 4 Ignition Failure 5 Reversed Polarity Continuous Flash Flame sensed with no...
22 Oct, 2019 Comments: 0
Nordyne FG7TC Fault Codes
Nordyne Gas Furnace: FG7TC Re: Furnace Lockout Codes Furnace Control Board Fault Conditions GREEN RED Description Off Off No Control Power Flash Flash L1/Neutral Polarity Reversed Alternating 1 Hour Lockout On On Normal Operation On ...
13 Feb, 2017 Comments: 0
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 Comments: 0
RPNE - Diagnostic Codes / Fault Codes
Rheem Heat Pump: RPNE Re: Diagnostic Codes / Fault Codes The defrost board uses two LEDs for diagnostics. The LEDs flash a specific sequence according to the condition. DIAGNOSTIC CODES: LED 1 LED 2 Description Alt Flashing Anti-Short-Cycle Delay Off Off No 24V...
16 Mar, 2021 Comments: 0
VisionPro Redlink - Aux Heat Settings
Honeywell Redlink VisionPro: TH8320R, TH8321R Re: Heat Pump Aux Heat Settings The New VisionPro thermostat allows a technician to adjust how the Auxiliary Heat cycles when configured for a Heat Pump. CONFIGURE THERMOSTAT 1. ENTER "INSTALLER SETUP" From the Home Screen, press the "MENU"...
5 Apr, 2017 Comments: 0