Daikin FDMG30NUV1 User Manual

Pocket
Manual
Service Diagnosis
Si20 - 701_B

Daikin FDMG30NUV1 Specifications

General

Brand	Daikin
Model	FDMG30NUV1
Category	Air Conditioner
Language	English

Summary

Symptom-based Troubleshooting

2.2 Equipment does not Operate

Details troubleshooting steps for when the equipment fails to start or operate.

2.3 Indoor Unit Fan Operates, but Compressor does not Operate

Addresses issues where the indoor fan runs but the compressor remains inactive.

2.4 Cooling / Heating Operation Starts but Stops Immediately

Outlines troubleshooting for systems that begin operation and then stop unexpectedly.

2.5 After Unit Shuts Down, It cannot be Restarted for a While

Explains why the unit may not restart immediately after shutting down.

2.6 Equipment Operates but does not Provide Cooling

Details troubleshooting steps when the unit runs but fails to deliver cooling.

2.7 Equipment Operates but does not Provide Heating

Covers issues where the unit operates but fails to provide heating.

Troubleshooting by Remote Controller

3.1 Procedure of Self-diagnosis by Remote Controller

Explains how to perform self-diagnosis using the remote controller for error detection.

3.2 Error Codes and Description

Lists and describes various error codes displayed by the system, categorized by component.

3.4 A0 Error of External Protection Device

Troubleshooting for error code A0 related to external protection device activation.

3.5 A1 Indoor Unit PCB Abnormality

Details troubleshooting for error code A1 indicating an indoor unit PCB issue.

3.6 A3 Drain Water Level System Abnormality

Covers troubleshooting for error code A3 related to drain water level system abnormalities.

3.7 A6 Indoor Unit Fan Motor Abnormality

Troubleshooting steps for error code A6 indicating abnormal indoor unit fan motor operation.

3.12 AF Drain System Abnormality

Covers troubleshooting for error code AF related to drain system abnormalities.

3.14 AJ Capacity Setting Abnormality

3.15 C1 Transmission Error (between Indoor Unit PCB and Fan PCB)

3.21 E0 Actuation of Safety Device

3.23 E1 Outdoor Unit PCB Abnormality

3.24 E3 High Pressure System Abnormality

3.33 E6 Compressor Overcurrent

3.35 E9 Electronic Expansion Valve Abnormality

3.40 F6 Refrigerant Overcharged

3.41 H3 High Pressure Switch Abnormality

3.43 H4 Low Pressure Sensor System Abnormality

3.45 H9, J3, J5, J6, J7, J8 Thermistor System Abnormality

3.47 J1 Pressure Sensor 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)

3.94 U5 Transmission Error Between Indoor Unit and Remote Controller

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

3.98 UA Defective Field Setting Switch

3.102 UC Centralized Address Setting Error

3.104 UE Transmission Error between Centralized Controller and Indoor Unit

3.105 UF Mis-connection of Field Wiring

3.107 UF Transmission Error between Indoor and Outdoor Unit / Piping and Wiring Mismatch / Refrigerant Shortage