Daikin R407C PLUS, Service Manual

Page: 148 / 267

Si33-105
Troubleshooting R407C PLUS Series Heat Recovery System 137
Part 5 Part 5 Part 5 Part 5
Troubleshooting Troubleshooting Troubleshooting Troubleshooting
R407C PLUS Series
R407C PLUS Series R407C PLUS Series
R407C PLUS Series
Heat Recovery System Heat Recovery System Heat Recovery System Heat Recovery System
1. Operation Flowcharts ..........................................................................139
1.1 Indoor Unit Operation Flowchart ..........................................................139
2. Troubleshooting by Remote Controller ...............................................144
2.1 The INSPECTION / TEST Button.........................................................144
2.2 Self-diagnosis by Wired Remote Controller .........................................145
2.3 Self-diagnosis by Wireless Remote Controller .....................................146
2.4 Operation of The Remote Controller’s Inspection /
Test Operation Button .........................................................................150
2.5 Remote Controller Service Mode .........................................................151
2.6 Remote Controller Self-Diagnosis Function .........................................153
3. Troubleshooting ..................................................................................157
3.1 Indoor Unit: Error of External Protection Device ..................................157
3.2 Indoor Unit: PC Board Defect...............................................................158
3.3 Indoor Unit: Malfunction of Drain Level Control System (33H).............159
3.4 Indoor Unit: Fan Motor (M1F) Lock, Overload......................................160
3.5 Indoor Unit: Malfunction of Swing Flap Motor (M1S)............................161
3.6 Indoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E)........................................................162
3.7 Indoor Unit: Drain Level above Limit ....................................................163
3.8 Indoor Unit: Malfunction of Capacity Determination Device .................164
3.9 Indoor Unit: Malfunction of Thermistor (R2T) for Liquid Pipe ...............165
3.10 Indoor Unit: Malfunction of Thermistor (R3T) for Gas Pipes ................166
3.11 Indoor Unit: Malfunction of Thermistor (R1T) for Air Inlet.....................167
3.12 Indoor Unit: Malfunction of Thermostat Sensor
in Remote Controller ............................................................................168
3.13 Outdoor Unit: Actuation of Safety Device.............................................169
3.14 Outdoor Unit: PC Board Defect ............................................................170
3.15 Outdoor Unit: Actuation of High Pressure Switch.................................171
3.16 Outdoor Unit: Actuation of Low Pressure Sensor.................................172
3.17 Outdoor Unit: Malfunction of Moving Part of
Electronic Expansion Valve (Y1E)........................................................173
3.18 Outdoor Unit: Abnormal Discharge Pipe Temperature.........................174
3.19 Outdoor Unit: Malfunction of Thermistor for Outdoor Air (R1T)............175
3.20 Outdoor Unit: Malfunction of Discharge Pipe Thermistor (R3T)...........176
3.21 Outdoor Unit: Malfunction of Thermistor (R6T) for Suction Pipe..........177
3.22 Outdoor Unit: Malfunction of Thermistor (R2T) for Heat Exchanger ....178
3.23 Outdoor Unit: Malfunction of Discharge Pipe Pressure Sensor ...........179
3.24 Outdoor Unit: Malfunction of Low Pressure Sensor .............................180
3.25 Low Pressure Drop Due to Refrigerant Shortage or
Electronic Expansion Valve Failure......................................................181
3.26 Reverse Phase, Open Phase...............................................................182
3.27 Malfunction of Transmission Between Indoor Units .............................183