Daikin RY140KUYALK User Manual

Pocket
Manual
Service Diagnosis
Si20 - 701_B

Daikin RY140KUYALK Specifications

General

Cooling Capacity (kW)	14.0
Heating Capacity (kW)	16.0
Power Source	Electric
Type	Split System
Power Supply	380-415V, 3Ph, 50Hz
Operating Temperature (Heating)	-15 to 24°C

Summary

Pocket Manual

Service Diagnosis

Main operational section of the pocket manual, detailing troubleshooting procedures.

Symptom-based Troubleshooting

2.2 Equipment does not Operate

Details troubleshooting steps for when the equipment does not operate.

2.3 Indoor Unit Fan Operates, but Compressor does not Operate

Addresses issues where the indoor fan runs but the compressor does not.

2.4 Cooling / Heating Operation Starts but Stops Immediately

Provides troubleshooting for operations that start and then stop immediately.

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

Covers issues with restarting the unit after it shuts down.

2.6 Equipment Operates but does not Provide Cooling

Details troubleshooting when the equipment operates but doesn't provide cooling.

2.7 Equipment Operates but does not Provide Heating

Addresses issues where the equipment operates but doesn't provide heating.

Troubleshooting by Remote Controller

3.1 Procedure of Self-diagnosis by Remote Controller

Details the procedure for self-diagnosis using the remote controller.

3.2 Error Codes and Description

Lists and describes error codes related to indoor units and their corresponding models.

3.3 Detailed Error Codes

Provides detailed error codes and their diagnostic steps for indoor and outdoor units.

3.4 A0 Error of External Protection Device

3.5 A1 Indoor Unit PCB Abnormality

3.6 A3 Drain Water Level System Abnormality

3.7 A6 Indoor Unit Fan Motor Abnormality

Explains A6 errors concerning indoor unit fan motor abnormalities.

3.8 A7 Swing Flap Motor Abnormality / Lock

3.10 A8 Abnormal Power Supply Voltage

Details A8 errors concerning abnormal power supply voltage.

3.11 A9 Electronic Expansion Valve Coil (Y1E) Abnormality

3.12 AF Drain System Abnormality

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

3.17 C4, C5, C9 Thermistor Abnormality

3.18 C6 Defective Combination (between Indoor Unit PCB and Fan PCB)

3.21 E0 Actuation of Safety Device

Details E0 errors related to the actuation of safety devices.

3.23 E1 Outdoor Unit PCB Abnormality

Explains E1 errors indicating abnormalities in the outdoor unit PCB.

3.24 E3 High Pressure System Abnormality

Covers E3 errors related to high pressure system abnormalities.

3.28 E4 Low Pressure System Abnormality

Details E4 errors indicating low pressure system abnormalities.

3.32 E5 Compressor Motor Lock

Explains E5 errors indicating compressor motor lock.

3.33 E6 Compressor Overcurrent

Covers E6 errors related to compressor overcurrent.

3.34 E7 Outdoor Unit Fan Motor Abnormality

Details E7 errors indicating outdoor unit fan motor abnormalities.

3.35 E9 Electronic Expansion Valve Abnormality

3.37 F3 Discharge Pipe Temperature Abnormality

3.40 F6 Refrigerant Overcharged

3.41 H3 High Pressure Switch Abnormality

Explains H3 errors indicating high pressure switch abnormalities.

3.43 H4 Low Pressure Sensor System Abnormality

Covers H4 errors indicating low pressure sensor system abnormalities.

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

3.47 J1 Pressure Sensor Abnormality

3.48 J2 Current Sensor System Abnormality

3.50 J5 Suction Pipe Thermistor Abnormality

3.51 J6 Heat Exchanger Thermistor System Abnormality

3.52 J7 Liquid Pipe Thermistor Abnormality

3.56 L1 Outdoor Unit PCB Abnormality

Details L1 errors indicating outdoor unit PCB abnormalities.

3.59 L4 Overcurrent of DC Output (Instantaneous)

Explains L4 errors concerning instantaneous DC output overcurrent.

3.62 L5 Momentary Overcurrent of Inverter Compressor

Covers L5 errors related to momentary overcurrent of the inverter compressor.

3.67 L8 Inverter Current Abnormality

Details L8 errors indicating inverter current abnormalities.

3.70 L9 Stall Prevention (Time Lag)

3.71 L9 Inverter Startup Error

3.72 LC Transmission Error Between Inverter and Control PCB

3.74 P1 Inverter Over-Ripple Protection

Explains P1 errors related to inverter over-ripple protection.

3.75 P1 Open Phase or Power Supply Voltage Imbalance

3.83 U0 Refrigerant Shortage

3.86 U1 Reverse Phase

3.87 U2 Insufficient Voltage

3.91 U3 Check Operation is not Executed

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

3.94 U5 Transmission Error Between Indoor Unit and Remote Controller

3.95 U7 Transmission Error Between Outdoor Units

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

3.102 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

3.108 UF Transmission System Abnormality (between Indoor and Outdoor Units)

3.109 UH System Error, Refrigerant System Address Undefined