Daikin FFQ60BV1B x 2 User Manual

Pocket
Manual
Service Diagnosis
Si20 - 701_B

Daikin FFQ60BV1B x 2 Specifications

General

Brand	Daikin
Model	FFQ60BV1B x 2
Category	Air Conditioner
Language	English

Summary

Symptom-based Troubleshooting

2.2 Equipment does not Operate

Details troubleshooting steps when equipment fails to operate.

2.3 Indoor Unit Fan Operates, but Compressor does not Operate

Addresses scenarios where the indoor fan works but the compressor does not.

2.4 Cooling / Heating Operation Starts but Stops Immediately

Troubleshooting for operations that start and then stop abruptly.

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

Diagnosing issues with delayed unit restarts after shutdown.

2.6 Equipment Operates but does not Provide Cooling

Troubleshooting for units that run but don't cool.

2.7 Equipment Operates but does not Provide Heating

Troubleshooting for units that run but don't heat.

Troubleshooting by Remote Controller

3.1 Procedure of Self-diagnosis by Remote Controller

3.2 Error Codes and Description

3.4 A0 Error of External Protection Device

3.5 A1 Indoor Unit PCB Abnormality

Addresses abnormalities with the indoor unit PCB, indicated by error code A1.

3.6 A3 Drain Water Level System Abnormality

3.7 A6 Indoor Unit Fan Motor Abnormality

3.8 A6 Fan Motor (M1F) Lock, Overload

3.9 A7 Swing Flap Motor Abnormality / Lock

3.10 A8 Abnormal Power Supply Voltage

3.11 A9 Electronic Expansion Valve Coil (Y1E) Abnormality

3.12 AF Drain System Abnormality

3.13 AF Drain Level above Limit

3.14 AJ Capacity Setting Abnormality

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

Troubleshooting transmission errors between indoor unit PCB and fan PCB, indicated by error code C1.

3.16 C1 Transmission Error (between Indoor Unit PCB and Adaptor PCB)

Troubleshooting transmission errors between indoor unit PCB and adaptor PCB, indicated by error code C1.

3.17 C4, C5, C9 Thermistor Abnormality

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

3.19 CC Humidity Sensor System Abnormality

3.20 CJ Remote Controller Thermistor Abnormality

3.21 E0 Actuation of Safety Device

3.22 E0 Activation of Outdoor Unit Protection Device

3.23 E1 Outdoor Unit PCB Abnormality

Troubleshooting abnormalities with the outdoor unit PCB, indicated by error code E1.

3.24 E3 High Pressure System Abnormality

3.25 E3 Abnormally High Pressure Level (HPS)

3.26 E3 High Pressure Abnormality (HPS)

3.27 E3 Actuation of High Pressure Switch

3.28 E4 Low Pressure System Abnormality

3.29 E4 Actuation of Pressure Sensor

3.30 E4 Actuation of Low Pressure Sensor

3.31 E4 Low Pressure System Abnormality

3.32 E5 Compressor Motor Lock

Troubleshooting compressor motor lock, indicated by error code E5.

3.33 E6 Compressor Overcurrent

Troubleshooting compressor overcurrent, indicated by error code E6.

3.34 E7 Outdoor Unit Fan Motor Abnormality

3.35 E9 Electronic Expansion Valve Abnormality

3.36 E9 Electronic Expansion Valve Coil Abnormality

3.37 F3 Discharge Pipe Temperature Abnormality

3.38 F3 Discharge Pipe Temperature Control

3.40 F6 Refrigerant Overcharged

3.41 H3 High Pressure Switch Abnormality

3.42 H3 High Pressure Switch System Abnormality

3.43 H4 Low Pressure Sensor System Abnormality

3.44 H7 Outdoor Unit Fan Motor Signal Abnormality

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

3.46 H9 Outdoor Air Thermistor System Abnormality

3.47 J1 Pressure Sensor Abnormality

3.48 J2 Current Sensor System Abnormality

3.49 J3 Discharge Pipe Thermistor System Abnormality

3.50 J5 Suction Pipe Thermistor Abnormality

3.51 J6 Heat Exchanger Thermistor System Abnormality

3.52 J7 Liquid Pipe Thermistor Abnormality

3.53 J9 Subcooling Heat Exchanger Gas Pipe Thermistor Abnormality

3.54 JA High Pressure Sensor Abnormality

3.55 JC Suction Pipe Pressure Sensor Abnormality

3.56 L1 Outdoor Unit PCB Abnormality

Troubleshooting abnormalities with the outdoor unit PCB, indicated by error code L1.

3.57 L1 Outdoor Inverter PCB Abnormality

Troubleshooting abnormalities with the outdoor inverter PCB, indicated by error code L1.

3.58 L1 Outdoor Unit PCB Abnormality

Troubleshooting abnormalities with the outdoor unit PCB, indicated by error code L1.

3.59 L4 Overcurrent of DC Output (Instantaneous)

Addresses instantaneous overcurrent of DC output, indicated by error code L4.

3.61 L5 Overcurrent of DC Output (Instantaneous)

Addresses instantaneous overcurrent of DC output, indicated by error code L5.

3.62 L5 Momentary Overcurrent of Inverter Compressor

Troubleshooting momentary overcurrent of the inverter compressor, indicated by error code L5.

3.63 L5 Output Overcurrent Detection

Addresses output overcurrent detection, indicated by error code L5.

3.64 L5 Output Overcurrent Detection

Addresses output overcurrent detection, indicated by error code L5.

3.65 L5 Output Overcurrent Detection

Addresses output overcurrent detection, indicated by error code L5.

3.66 (L8) Electronic Thermal Switch (Time Lag)

3.67 L8 Inverter Current Abnormality

3.68 L8 Inverter Compressor Overcurrent

Troubleshooting overcurrent in the inverter compressor, indicated by error code L8.

3.69 L8 Electronic Thermal (Time Lag)

3.70 L9 Stall Prevention (Time Lag)

3.71 L9 Inverter Startup Error

3.72 LC Transmission Error Between Inverter and Control PCB

Troubleshooting transmission errors between inverter and control PCB, indicated by error code LC.

3.73 LC Transmission Error (between Control PCB and Inverter PCB)

Troubleshooting transmission errors between control and inverter PCBs, indicated by error code LC.

3.74 P1 Inverter Over-Ripple Protection

3.75 P1 Open Phase or Power Supply Voltage Imbalance

3.78 PJ Defective Capacity Setting

3.79 PJ Error in Capacity Setting

3.80 PJ Field Setting Error after Replacing Main PCB or Defective Combination of PCB

3.81 PJ Defective Combination of Inverter and Fan Driver

3.82 PJ Defective Capacity Setting

3.83 U0 Refrigerant Shortage

Troubleshooting refrigerant shortage, indicated by error code U0.

3.84 U0 Low Pressure Drop Due to Refrigerant Shortage or Electronic Expansion Valve Failure

3.85 U0 Refrigerant Shortage

Troubleshooting refrigerant shortage, indicated by error code U0.

3.86 U1 Reverse Phase

3.87 U2 Insufficient Voltage

3.88 U2 Power Supply Voltage Abnormality

3.89 U2 Power Supply Insufficient or Instantaneous Failure

3.90 U2 Power Supply Voltage Abnormality

3.91 U3 Check Operation is not Executed

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

Troubleshooting transmission errors between indoor and outdoor units, indicated by error codes U4 or UF.

3.93 U4 Transmission Error Between Indoor Unit and Outdoor Unit

Troubleshooting transmission errors between indoor and outdoor units, indicated by error code U4.

3.94 U5 Transmission Error Between Indoor Unit and Remote Controller

Troubleshooting transmission errors between indoor unit and remote controller, indicated by error code U5.

3.95 U7 Transmission Error Between Outdoor Units

Troubleshooting transmission errors between outdoor units, indicated by error code U7.

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

Troubleshooting transmission errors between main and sub remote controllers, indicated by error code U8.

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

Troubleshooting transmission errors between indoor/outdoor units in the same system, indicated by error code U9.

3.98 UA Defective Field Setting Switch

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

Troubleshooting improper combinations of indoor/outdoor units and remote controllers, indicated by error code UA.

3.100 UA Field Setting Switch Abnormality

3.101 UA Field Setting Switch and Transmission Line Abnormality

3.102 UC Centralized Address Setting Error

3.103 UC Address Duplication of Centralized Controller

3.104 UE Transmission Error between Centralized Controller and Indoor Unit

Troubleshooting transmission errors between centralized controller and indoor unit, indicated by error code UE.

3.105 UF Mis-connection of Field Wiring

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

Troubleshooting transmission errors, piping/wiring mismatches, and refrigerant shortage, indicated by error code UF.

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

Troubleshooting transmission system abnormalities between indoor and outdoor units, indicated by error code UF.

3.109 UH System Error, Refrigerant System Address Undefined