Bryant
Humidifier Control Ineffective
Thermostat indicates humidification is active, but indoor humidity does not increase in winter.
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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
Humidifier not wired correctly to Bryant control board or thermostat, Water supply to humidifier turned off or clogged, Failed humidifier solenoid valve, Humidifier only enabled under certain temperature conditions
How to Fix / Troubleshooting
Safety first: Turn off power to the indoor unit and shut off the humidifier water supply before servicing.
Steps to troubleshoot:
- 1. Verify configuration: Ensure the thermostat is configured for the correct type of Bryant-compatible humidifier.
- 2. Inspect wiring: Check humidifier control wiring from the thermostat/indoor board to the humidifier solenoid or control module.
- 3. Check water supply: Confirm the saddle valve or shutoff feeding the humidifier is open and that the water line is not kinked or clogged.
- 4. Test solenoid (technician): A technician can test for 24V at the humidifier solenoid when humidification is called and replace the solenoid if it does not open.
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Repair Difficulty
Hard
4/5
Required Part
Bryant Humidifier Solenoid Valve
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