What does 425 mean?

The pressure switch has been permanently triggered, indicating a persistent alarm. Check the main and group fuses and their cable connections.

• Permanent pressure switch alarm
• Main and group fuses and their cable connections

Click steps to track your progress.

1. 1

   Check main and group fuses for correct position and integrity.

2. 2

   Verify cable connections to fuses and pressure switch.

3. 3

   Inspect the pressure switch for correct operation.

4. 4

   Consult a service technician.