CodeRegistry
Brands
  1. Home
  2. Daikin
  3. Air Conditioning
  4. CA
About·Privacy·Terms

CodeRegistry — Your global library for technical solutions.

For your safety: always follow the equipment manufacturer’s official manuals. CodeRegistry is an independent help site and is not affiliated with the brands listed here.

CA

CA - Discharge air sensor fault

Daikin · Air Conditioning

What does CA mean?

The sensor measuring the temperature of the air being discharged from the unit is open or short circuited.

Common Causes

  • Discharge air sensor is open or short circuited.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Ensure the discharge air sensor is properly connected.

  2. 2

    Check the sensor and its wiring for any physical damage.

  3. 3

    If the sensor or wiring is faulty, a technician must replace it.

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
Open Manual (Page 1)Search more codes in this manual