Hydraulic Indoor Unit LED2 (Green) 10 Flashes, LED1 (Red) 3 Flashes - Compressor temperature protection

What does LED2 10 Flashes, LED1 3 Flashes mean?

This indicates that the compressor's internal temperature has exceeded safe limits, triggering a protective shutdown. The outdoor unit may also show '12 Flashes' for compressor temperature protection (permanent stoppage) after pressing the ENTER switch.

• Overheating of the compressor due to heavy load or refrigerant issues.
• Faulty compressor thermistor or control.
• Insufficient oil in the compressor.

Click steps to track your progress.

1. 1

   Turn off the main power supply to the heat pump for 30 seconds, then turn it back on.

2. 2

   Ensure the outdoor unit has proper ventilation and is not operating in extreme conditions.

3. 3

   If the error persists, use the 'Reset HP' function (Line 6711) in the control system.

4. 4

   Contact a qualified service technician to diagnose the compressor's temperature issue.