C488 - AC Input voltage sensor error

What does C488 mean?

The air conditioner's sensor for measuring the AC input voltage has reported an error. This affects the unit's ability to monitor incoming power.

• Faulty AC input voltage sensor
• Wiring issue
• Main control board error
• Unstable power supply

Click steps to track your progress.

1. 1

   Turn off the air conditioner at the main power supply, wait 5 minutes, then restart.

2. 2

   Ensure the main power supply to the unit is stable and correct.

3. 3

   If the error persists, contact a qualified service technician.