PC45 — Outdoor unit IR chip drive failure

What does PC45 mean?

There is a failure in the Infrared (IR) chip drive system of the outdoor unit. This chip is often involved in communication or control functions.

• Defective IR chip
• Failure in the associated drive circuitry
• Loose or damaged wiring

Click steps to track your progress.

1. 1

   Check electrical connections related to the IR chip and its drive circuitry.

2. 2

   Perform a power reset by turning off the breaker for 30 seconds, then restoring power.

3. 3

   If the error persists, the IR chip or its drive components likely need professional replacement.