Humidifier and Air Cleaner Troubleshooting

Keep the air clean and flowing with this guide!

Humidifier and Air Cleaner Troubleshooting

Humidifier and air cleaner maintenance can reduce the likelihood of a problem occurring. But if a larger issue occurs, we’ve got you covered. Here’s an introductory guide to troubleshooting humidifiers, ventilators, and air purifiers.

Disclaimer: The following information is for educational purposes only. Tampering with your system may void your warranty. If you have any questions about your system, call a Trane Comfort Specialist™.

Need Emergency Service?

If this is an emergency, then please contact local Trane Comfort Specialist™ for assistance regarding your humidifier and/or air cleaner.

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Before you call for service, check the following:
The fan in the humidifier isn't spinning
Possible cause It could be a bad control board or a burned out motor.
Recommended Action Both of these can stop the humidifier fan from operating properly. Thankfully, these issues can also be fixed by a Trane Comfort Specialist™.
Water isn't reaching the humidifier
Possible cause The solenoid valve may not be working, or may not be getting power due to a bad control board.
Recommended Action If you don’t hear a telltale click when the humidifier is turned on, you’ll need to contact your local Trane Comfort Specialist™.
Possible cause There may be a block in the in-line strainer or another issue with the drain hose.
Recommended Action The hose might need to be replaced. Your local Trane dealer can help with that.
Decreased airflow in purifier
Possible cause The air filters could be blocked.
Recommended Action You might have to replace or clean the air filters. Refer to your owner’s manual to determine how often a cleaning is recommended.
Air ventilator not moving air
Possible cause This could be a problem with the air filters.
Recommended Action Be sure and replace your air filters regularly.
Possible cause There could be blockages in the clean or stale air vents.
Recommended Action If you find a blockage but you are unsure how to proceed, contact a certified Trane Comfort Specialist™.
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