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C8

C8 - Malfunction of AC input current sensor system

Daikin · Air Conditioning

What does C8 mean?

The system's sensor for monitoring incoming AC current is faulty.

Common Causes

  • Defective current sensor
  • Wiring issue
  • Problem with the main control board

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the unit at the breaker for 60 seconds, then turn it back on.

  2. 2

    Check the wiring connected to the current sensor for any visible damage.

  3. 3

    This requires a professional technician to diagnose and repair.

Browse all codes in this manual (79)
Verified technical data. Last updated: April 2026

Related Faults

A0A0 - External protection activeA1A1 - Indoor PCB failureA2A2 - Malfunction of freezing protection
Source: Daikin Air Conditioning
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