Alarm 237 (or 229, 4) Short run times for compressor — Compressor stops too quickly

What does Short run times for compressor 237 mean?

This alarm indicates that the compressor stops less than 5 minutes after starting, often due to poor flow, incorrect settings, or issues within the refrigerant circuit.

• Poor flow in the heating medium.
• Poor heat transfer.
• Incorrect settings for heating or hot water in the indoor module/control module.
• Disruption in the refrigerant circuit.

Click steps to track your progress.

1. 1

   Check the indoor module/control module for specific action instructions and verify heating/hot water settings.

2. 2

   Ensure thermostats in all rooms are not closed and are set to maximum in as many rooms as possible.

3. 3

   Bleed air from radiators/underfloor heating coils if the system seems to have air.

4. 4

   Check for any foreign objects blocking the airflow to S2125.