Alarm 323 (or 427, 110) Safety stop, inverter — Temporary fault in inverter (2 times in 60 min)

What does Safety stop, inverter 323 mean?

This alarm signifies that the inverter has experienced a temporary fault 2 times within 60 minutes, potentially due to a disruption in supply voltage.

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

Click steps to track your progress.

1. 1

   Check the indoor module/control module display for specific action instructions.

2. 2

   Verify all supply cables to the Heat Pump are connected.

3. 3

   Check the group and main fuses of the accommodation and the Heat Pump’s fuses.

4. 4

   If the problem recurs frequently, contact a qualified technician to inspect the inverter and power supply.