Alarm Z1 Superheat of refrigerant too low — Repeated low superheat warning

What does 5367 mean?

This alarm triggers if three warnings (code 5366) are registered within three hours, or if the warning is active for 30 minutes. It indicates a persistent issue with the refrigerant's superheat being too low.

• Motor not correctly mounted on the electronic expansion valve.
• Defective expansion valve motor.
• Expansion valve VR1 opens too much or is stuck in an open position.

Click steps to track your progress.

1. 1

   Check that the motor is correctly mounted on the electronic expansion valve.

2. 2

   If the alarm persists, contact a qualified technician to diagnose the electronic expansion valves and their motors.

3. 3

   Do not attempt to repair or replace refrigeration components yourself unless you are a qualified installer.