H2 - Malfunction of room temperature sensor or humidifier unit damper

What does H2 mean?

• Defective room thermostat sensor
• Humidifier damper motor failure
• Wiring problem

Click steps to track your progress.

1. 1

   Ensure the room temperature sensor is not blocked or covered.

2. 2

   Power cycle the unit by turning off the breaker for 60 seconds.

3. 3

   A technician needs to inspect the relevant sensor or damper.