Daikin R26NUV1 User Manual

Pocket
Manual
Service Diagnosis
Si20 - 701_B

Daikin R26NUV1 Specifications

General

Brand	Daikin
Model	R26NUV1
Category	Air Conditioner
Language	English

Summary

Service Diagnosis

2. Symptom-based Troubleshooting

2.2 Equipment does not Operate

Details troubleshooting steps for when the equipment fails to operate.

2.4 Cooling / Heating Operation Starts but Stops Immediately

Troubleshooting for operations that start and then stop abruptly.

2.6 Equipment Operates but does not Provide Cooling

Troubleshooting for units that run but fail to provide cooling.

3. Troubleshooting by Remote Controller

3.1 Procedure of Self-diagnosis by Remote Controller

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

3.2 Error Codes and Description

Lists and describes various error codes displayed by the remote controller.

3.3 Detailed Error Codes

Provides in-depth explanations for specific error codes.

3.5 A1 Indoor Unit PCB Abnormality

Discusses error code A1 concerning abnormalities in the indoor unit PCB.

3.7 A6 Indoor Unit Fan Motor Abnormality

3.12 AF Drain System Abnormality

3.21 E0 Actuation of Safety Device

3.33 E6 Compressor Overcurrent

3.43 H4 Low Pressure Sensor System Abnormality

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

3.72 LC Transmission Error Between Inverter and Control PCB

3.83 U0 Refrigerant Shortage

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

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

3.100 UA Field Setting Switch Abnormality

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

3.109 UH System Error, Refrigerant System Address Undefined