Alarm Z1 Driving failure on compressor — Repeated compressor driving failure

What does 5351 mean?

This alarm triggers if three warnings (code 5350) are registered within three hours, or if the warning is active for 30 minutes. It indicates a persistent problem with the compressor motor failing to start or synchronize.

• Bad cabling connection between the inverter and compressor.
• Oil or liquid present in the compressor during a start attempt.
• Bad temperature reading from compressor sensor TR1.
• Improper setting of rotary encoders (A- and P-selectors) on the I/O module.

Click steps to track your progress.

1. 1

   Check the cabling and connections between the inverter and the compressor for any loose wires.

2. 2

   Verify that the A- and P-selectors (rotary encoders) on the I/O module are set correctly according to your wiring diagram.

3. 3

   If the alarm persists, contact a qualified technician for further diagnosis and repair.