Heat Controller H 006

Questions and Answers

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Aaron LoweAug 18, 2025
What causes Over/Under Voltage Code 7 on Heat Controller Heat Pump and how to fix it?
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  Trevor GutierrezAug 18, 2025
  The Code 7 on your Heat Controller Heat Pump indicates an over or under voltage issue. If it is undervoltage, check the power supply and the 24VAC voltage, both before and during operation. Also, examine the power supply wire size and consider if a hard start kit is needed for the compressor. Verify the 24VAC and the unit transformer tap are set for the correct power supply voltage. If it is overvoltage, check the power supply voltage and the 24VAC before and during operation. Also, verify the 24VAC and unit transformer tap for the correct power supply voltage.
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crystalbarrettAug 21, 2025
Why is my Heat Controller Heat Pump showing FP2 fault (Code 5) and how can I resolve it?
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  Mary ThompsonAug 22, 2025
  The FP2 fault (Code 5) on your Heat Controller Heat Pump indicates a low temperature limit on the air coil. This can occur due to: * Reduced or no air flow in cooling: Inspect the air filter for dirt; clean or replace it if necessary. * Air temperature out of range: Adjust the entering air temperature to stay within the design parameters. * Improper temperature limit setting: Normal airside applications typically require 30°F. * Bad thermistor: Check the temperature and impedance correlation per the chart. Also, check the fan motor operation and airflow restrictions. Compare the static pressure against the blower table if the external static pressure is too high.
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Steven WilliamsAug 25, 2025
What does FP1 Fault (Code 4) mean on my Heat Controller Heat Pump, and how do I fix it?
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  Scott DunnAug 26, 2025
  FP1 Fault (Code 4) on your Heat Controller Heat Pump signifies a low temperature limit on the water coil. This could be due to: * Reduced or no water flow in heating: Check the pump or water valve operation and setting. * Inadequate anti-freeze level: Verify the antifreeze density using a hydrometer. * Water temperature out of range: Adjust the water temperature to stay within the design parameters. * Faulty thermistor: Check the temperature and impedance correlation as per the chart. Also, inspect for a plugged strainer or filter and clean or replace it. Check the water flow and adjust it to the proper flow rate.
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Arthur JonesAug 27, 2025
What to do if Heat Controller Heat Pump displays a Low Pressure/Loss of Charge fault (Code 3)?
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  Larry PowellAug 27, 2025
  If your Heat Controller Heat Pump is showing a Low Pressure/Loss of Charge fault (Code 3), it may be caused by: * Insufficient charge: Check for refrigerant leaks. * Compressor pump down at start-up: Check the charge and start-up water flow.
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Jack LopezAug 30, 2025
Why does my Heat Controller Heat Pump keep short cycling?
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  Jason WebbAug 30, 2025
  Your Heat Controller Heat Pump might be short cycling due to several reasons: * Dirty air filter: Clean the air filter. * Unit in "Test Mode": Reset the power or wait 20 minutes for it to automatically exit Test Mode. * Incorrect unit selection: The unit may be oversized for the space. Verify the sizing matches the actual load of the space. * Compressor Overload: Check and replace the compressor if necessary. * Thermostat position: Make sure the thermostat is set for heating or cooling operation. * Unit locked out: Check for lockout codes and reset the power.
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johndaviesSep 2, 2025
What does Unit Performance Sentinel-Code 8 on Heat Controller Heat Pump mean?
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  Lori RobinsonSep 2, 2025
  The Unit Performance Sentinel-Code 8 on your Heat Controller Heat Pump indicates a performance issue. In heating mode, it means the FP2 is greater than 125°F, which could be due to poor air flow or an overcharged unit. In cooling mode, it means the FP1 is greater than 125°F OR FP2 is less than 40°F, which could be due to poor water flow or air flow.
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howardmeghanSep 5, 2025
How to troubleshoot Condensate Fault-Code 6 on a Heat Controller Heat Pump?
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  jennifer29Sep 6, 2025
  To troubleshoot Condensate Fault-Code 6 on your Heat Controller Heat Pump: * Check for blockage and clean the drain. * Check trap dimensions and location ahead of vent. * Check for piping slope away from the unit. * Check slope of unit toward outlet. * Check vent location. * Check for moisture shorting to air coil.
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Melissa JacksonSep 8, 2025
How to troubleshoot main power problems in Heat Controller Heat Pump?
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  Brian GuerraSep 8, 2025
  To troubleshoot main power problems in your Heat Controller Heat Pump: * If the Green Status LED is off, check the line voltage circuit breaker and disconnect. * Check for line voltage between L1 and L2 on the contactor. * Check for 24VAC between R and C on CXM. * Check the primary/secondary voltage on the transformer.
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Joseph BartlettSep 12, 2025
What to do if my Heat Controller Heat Pump shows no fault code but isn't working properly?
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  Ronnie ParkSep 12, 2025
  If your Heat Controller Heat Pump shows no fault code but isn't working correctly: * If there is no compressor operation, refer to the "Only fan operates" troubleshooting section. * Check the compressor overload and replace if necessary. * Reset the power to the control board and check its operation.
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angelaparkerNov 14, 2025
What to do if Heat Controller Heat Pump shows a high pressure fault (Code 2)?
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  Deanna OlsonNov 14, 2025
  If your Heat Controller Heat Pump displays a high pressure fault (Code 2), it could be due to several reasons: * Reduced or no water flow in cooling: Check the pump or valve operation and settings. * Water temperature out of range in cooling: Adjust the water temperature to stay within the design parameters. * Reduced or no air flow in heating: Inspect the air filter for dirt; clean or replace it if necessary. * Air temperature out of range in heating: Ensure the return air temperature is within the design parameters. * Overcharged refrigerant: Compare the superheat/subcooling to the typical operating condition table. * Faulty HP switch: Verify the switch's continuity and operation, and replace if needed. Also, check the water flow and adjust it to the proper flow rate. Look ...