H1 - Malfunction of room temperature sensor or humidifier unit damper (Indoor Unit)

What does H1 mean?

This error indicates a problem with either the room temperature sensor or the damper in the humidifier unit of the indoor system.

• Faulty room temperature sensor
• Humidifier damper malfunction
• Wiring issue to sensor or damper

Click steps to track your progress.

1. 1

   Turn off power to the unit.

2. 2

   Ensure the room temperature sensor is not blocked or dirty.

3. 3

   If your unit has a humidifier, check its damper mechanism for obstructions.

4. 4

   Restore power.

5. 5

   If the error continues, contact a technician.