Error 1102 – Abnormal discharge air temperature detected

What does 1102 mean?

The unit detects a discharge temperature of 115°C (239°F) or higher multiple times (three detections within 30 minutes), leading to an abnormal stop. A preliminary error code will appear on the LED.

• Refrigerant gas leak or shortage
• Operating with an overload
• LEV (Liquid Electronic Valve) actuation failure
• Thermistor (TH11) failure or input circuit failure on the controller board
• Shortage of circulating water (pump flow 0.6-2.15 m³/h)
• Clogged heat vent outlet

Click steps to track your progress.

1. 1

   Check that the heat vent outlet (located on the left side of the unit) is not clogged or obstructed.

2. 2

   Verify the circulating water supply to ensure there is no shortage and that the pump meets the required specifications.

3. 3

   Check the inlet air temperature on the LED monitor, if available, for unusual readings.

4. 4

   If the issue persists, a technician should inspect for refrigerant leaks and check the LEV operation and thermistor (TH11).