Alarm 323 - Safety stop, inverter (Temporary fault)

What does 323 mean?

The inverter has experienced a temporary fault 2 times within 60 minutes, leading to a safety stop. This indicates intermittent issues with the inverter's operation.

• Disruption in supply voltage to the inverter.
• Temporary internal fault in the inverter.

Click steps to track your progress.

1. 1

   Check the main circuit breaker and fuses for the Heat Pump and the inverter to ensure stable power supply.

2. 2

   Turn off the Heat Pump at the main power switch for a few minutes, then turn it back on to reset the inverter.

3. 3

   Monitor if the alarm recurs. If it does, contact a qualified NIBE service technician to inspect the inverter and power supply.