Daikin FCQ140KAVLT User Manual

Pocket
Manual
Service Diagnosis
Si20 - 701_B

Daikin FCQ140KAVLT Specifications

General

Refrigerant	R32
Cooling Capacity	14.0 kW
Heating Capacity	16.0 kW
Dimensions (Indoor Unit)	840 x 840 x 290 mm
Sound Pressure Level (Outdoor)	52 dBA

Summary

Symptom-based Troubleshooting

2.2 Equipment does not Operate

Details troubleshooting steps for when the equipment fails to operate.

2.3 Indoor Unit Fan Operates, but Compressor does not Operate

Troubleshooting for scenarios where the indoor fan runs, but the compressor remains inactive.

2.4 Cooling / Heating Operation Starts but Stops Immediately

Troubleshooting steps for cooling or heating operations that start and then stop abruptly.

Troubleshooting by Remote Controller

3.1 Procedure of Self-diagnosis by Remote Controller

Details the process for performing self-diagnosis using the remote controller.

3.2 Error Codes and Description

Lists and describes various error codes and their meanings for indoor and outdoor units.

3.4 A0 Error of External Protection Device

Troubleshooting for A0 error related to external protection devices.

3.5 A1 Indoor Unit PCB Abnormality

Troubleshooting steps for A1 error indicating an indoor unit PCB abnormality.

3.6 A3 Drain Water Level System Abnormality

Troubleshooting for A3 error related to drain water level system abnormalities.

3.11 A9 Electronic Expansion Valve Coil (Y1E) Abnormality

Troubleshooting for A9 error concerning the electronic expansion valve coil abnormality.

3.14 AJ Capacity Setting Abnormality

3.17 C4, C5, C9 Thermistor Abnormality

3.21 E0 Actuation of Safety Device

3.24 E3 High Pressure System Abnormality

3.28 E4 Low Pressure System Abnormality

3.32 E5 Compressor Motor Lock

3.33 E6 Compressor Overcurrent

3.36 E9 Electronic Expansion Valve Coil Abnormality

3.37 F3 Discharge Pipe Temperature Abnormality

3.41 H3 High Pressure Switch Abnormality

3.43 H4 Low Pressure Sensor System Abnormality

3.56 L1 Outdoor Unit PCB Abnormality

3.72 LC Transmission Error Between Inverter and Control PCB

3.83 U0 Refrigerant Shortage

3.86 U1 Reverse Phase

3.92 U4 or UF Transmission Error (Between Indoor Unit and Outdoor Unit)

3.96 U8 Transmission Error Between Main Remote Controller and Sub Remote Controller

3.97 U9 Transmission Error Between Indoor and Outdoor Units in the Same System

3.99 UA Improper Combination of Indoor and Outdoor Units, Indoor Units and Remote Controller