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CE

CE - Malfunction of switch box thermistor

Daikin · Air Conditioning

What does CE mean?

The temperature sensor located within the switch box of the indoor unit is malfunctioning.

Common Causes

  • Faulty switch box thermistor
  • Loose wiring
  • Overheating within the switch box

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

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

  2. 2

    Ensure there are no signs of overheating around the unit.

  3. 3

    A qualified technician should inspect the switch box and thermistor.

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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