E49 - Low pressure fault or low voltage detected

What does E49 mean?

The system has detected either a low pressure fault in the refrigerant system or a low voltage condition. Both can impair system performance and lead to protective shutdowns.

• Refrigerant leak or insufficient charge (low pressure).
• Blockage in the refrigerant lines (low pressure).
• Insufficient main power supply voltage (low voltage).
• Faulty low-pressure sensor.

Click steps to track your progress.

1. 1

   Turn off the unit at the circuit breaker.

2. 2

   Wait 30 seconds, then restore power.

3. 3

   Check if other electrical devices in your home are experiencing low power.

4. 4

   If the error persists, contact a qualified technician to check refrigerant levels and electrical supply.