P-93 — Free cooling valve position incorrect for circuit C

What does P-93 mean?

The 3-way valve for free cooling in circuit C has not reached its correct position within the expected time. The unit will shut down.

• 3-way valve has not reached the correct position.
• Installation fault.
• Defective valve.

Click steps to track your progress.

1. 1

   Check that the 3-way valve is correctly installed and connected.

2. 2

   Verify the valve is not obstructed and can move freely.

3. 3

   Reset the alarm and monitor the valve's operation.

4. 4

   If the problem persists, contact a qualified technician.