Alarm 233 - Fan alarm from Heat Pump

What does 233 mean?

The Heat Pump has experienced 5 unsuccessful fan start attempts, or the display shows a fan alarm. This indicates an issue with the outdoor unit's fan operation.

• Significant wind effect interfering with the fan.
• Fan is blocked by debris, ice, or snow.
• Fan is not properly connected electrically.

Click steps to track your progress.

1. 1

   Check the outdoor fan for any visible obstructions like leaves, snow, or ice and clear them carefully.

2. 2

   Ensure that the area around the Heat Pump's fan is clear to allow for proper airflow.

3. 3

   Verify that the fan's electrical connection is secure (this may require a technician).

4. 4

   If the problem recurs, contact a qualified NIBE service technician.