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Daikin RXYSQ4-5-6PA7V1B Service Manual page 4

Vrv iii-s
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SiBE34-802
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(Between Indoor unit PC Board and Fan PC Board)............................154
for Heat Exchanger ..............................................................................156
Remote Controller ................................................................................162
3.21 "E5"
Inverter Compressor Motor Lock ...................................................168
3.22 "E7"
Malfunction of Outdoor Unit Fan Motor .........................................169
Electronic Expansion Valve (Y1E, Y3E)...............................................170
3.25 "F6"
Outdoor Unit: Refrigerant Overcharged.........................................173
3.28 "J5" Outdoor Unit:
Suction Pipe 1, 2 ..................................................................................176
Outdoor Unit Liquid Pipe ......................................................................178
Temperature Rise.................................................................................183
Inverter and Control PC Board .............................................................187
Main Inverter Circuit .............................................................................188
3.41 "U0"
Electronic Expansion Valve Failure......................................................189
3.42 "U2"
3.43 "U3"
Check Operation not Executed......................................................193
3.44 "U4"
Outdoor Units .......................................................................................194
Indoor Unit............................................................................................196
3.46 "U8"
Sub Remote Controllers .......................................................................197
3.47 "U9"
Outdoor Units in the Same System ......................................................198
Malfunction of Thermistor (R2T)
Malfunction of Thermistor for Discharge Air...............160
PC Board Defect .....................................................163
Actuation of High Pressure Switch..........................164
Actuation of Low Pressure Sensor..........................166
Malfunction of Moving Part of
Malfunction of Thermistor (R1T) for Outdoor Air.....174
Malfunction of Thermistor (R3T, R5T) for
Malfunction of Thermistor (R6T) .............................177
Malfunction of Thermistor (R7T) for
Malfunction of Thermistor (R4T) .............................179
Malfunction of High Pressure Sensor......................180
Malfunction of Low Pressure Sensor ......................181
Malfunction of PC Board .........................................182
Malfunction of Inverter Radiating Fin
Inverter Compressor Abnormal ...............................184
Inverter Current Abnormal.......................................185
Inverter Start up Error .............................................186
Malfunction of Transmission between
High Voltage of Capacitor in
iii
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