Error 452 — ZPC detection circuit problem or power failure

What does 452 mean?

There is an issue with the ZPC (Zero Power Consumption) detection circuit, or a power failure affecting this circuit. This may impact specific functions of the unit.

• Faulty ZPC detection circuit
• Power supply issue to the ZPC circuit
• Internal wiring problem

Click steps to track your progress.

1. 1

   Check the power supply to the ZPC detection circuit.

2. 2

   Inspect the wiring related to the ZPC circuit.

3. 3

   This error typically requires a technician to diagnose the specific circuit board.

4. 4

   Ensure all system power connections are secure.