Alarm 237 - Short run times for compressor

What does 237 mean?

The compressor has stopped operation from the indoor section after less than 5 minutes of running. This indicates the Heat Pump is cycling on and off too frequently.

• Insufficient available system volume.
• Significant wind effect affecting outdoor unit.
• Poor flow or poor heat transfer in the system.
• Incorrect settings for heating and/or hot water in the control module.

Click steps to track your progress.

1. 1

   Check the system for adequate heating medium flow and ensure circulation pumps are operating correctly.

2. 2

   Review the settings for heating and hot water in your NIBE indoor module or control module to ensure they are appropriate.

3. 3

   Ensure the system's total volume is sufficient; if you've recently made changes, verify they meet system requirements.

4. 4

   If the problem continues, contact a qualified NIBE service technician to diagnose the issue.