H3 - High-pressure switch open circuit

What does H3 mean?

The high-pressure switch has an open circuit, indicating a potential pressure issue or switch failure.

• High pressure switch open circuit.

Click steps to track your progress.

1. 1

   Ensure the system is operating within normal pressure ranges.

2. 2

   Check the wiring and connection of the high-pressure switch.

3. 3

   If the switch itself is faulty or pressures are abnormal, contact a technician.