E14
Goodman
Integrated Humidity Sensor or Dehumidify Output Fault
Thermostat shows E14 and indicates humidity sensor or dehumidification control error
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed internal humidity sensor, Miswired dehumidification terminal (DH or D), Shorted dehumidification relay output, Incorrect dehumidify configuration in installer menu
How to Fix / Troubleshooting
Safety first: Turn off power to the HVAC system at the breaker before working on any dehumidification wiring.
Steps to address E14 humidity/dehumidify fault:
- 1. Verify configuration: In the installer menu, confirm that dehumidification is enabled only if a compatible Goodman dehumidifier or dehumidify-on-demand setup is installed.
- 2. Inspect DH wiring: If a dehumidifier is connected, check the DH/D terminals at the thermostat and at the dehumidifier or Goodman control board. Look for shorts to other conductors.
- 3. Disable dehumidify temporarily: Turn off dehumidification control in the thermostat settings. If E14 clears, the issue is likely with the external dehumidification circuit.
- 4. Check humidity readings: Compare the thermostat's humidity reading to a standalone hygrometer. If readings are erratic or missing, the internal humidity sensor may have failed.
- 5. Replace thermostat if needed: The internal humidity sensor is not field-repairable. If humidity readings are clearly wrong and E14 persists, replace the thermostat.
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Repair Difficulty
Medium
3/5
Required Part
Goodman smart thermostat with humidity sensing
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