Daikin VRV - WII Service Manual page 5

3. Troubleshooting (OP: Central Remote Controller) ..................................229
4. Troubleshooting (OP: Schedule Timer)...................................................235
iv
2.25 "J9" Malfunction of Sub Cooling Heat Exchanger Outlet Thermistor
(R5T) ........................................................................................................ 190
2.26 "JA" Outside Unit:
2.27 "JC" Outside Unit:
2.28 "L1" Outdoor Unit:
2.29 "L4" Outside Unit:
Temperature Rise (R1T) .......................................................................... 196
2.30 "L5" Outside Unit:
2.31 "L8" Outside Unit:
2.32 "L9" Outside Unit:
2.33 "LC" Outside Unit:
Inverter and Control PC Board ................................................................. 201
2.34 "P1" Outside Unit:
2.35 "P4" Outside Unit:
Temperature Sensor ................................................................................ 205
2.36 "PJ" Outdoor Unit: Faulty Field Setting after Replacing Main PC Board or
Faulty Combination of PC Board.............................................................. 206
2.37 "UO" Low Pressure Drop Due to Refrigerant Shortage or
Electronic Expansion Valve Failure.......................................................... 207
2.38 "U1" Reverse Phase, Open Phase............................................................. 209
2.39 "U2" Power Supply Insufficient or Instantaneous Failure .......................... 210
2.40 "U3" Check Operation not Executed.......................................................... 212
2.41 "U4" Malfunction of Transmission between Indoor Units........................... 213
2.42 "U5" Malfunction of Transmission between Remote Controller and
Indoor Unit................................................................................................ 215
2.43 "U7" Malfunction of Transmission between Outside Units ......................... 216
2.44 "U8" Malfunction of Transmission between Master and
Slave Remote Controllers ........................................................................ 218
2.45 "U9" Malfunction of Transmission between Indoor and
Outside Units in the Same System........................................................... 219
2.46 "UA" Indoor & Outside Units and Remote Controller
Combination Failure ................................................................................. 221
2.47 "UC" Address Duplication of Centralized Controller ................................... 223
2.48 "UE" Malfunction of Transmission between Centralized Controller and
Indoor Unit................................................................................................ 224
2.49 "UF" Refrigerant System not Set, Incompatible Wiring/Piping ................... 226
2.50 "UH" Malfunction of System, Refrigerant System Address Undefined....... 227
3.1 "M1" PC Board Defect ................................................................................ 229
3.2 "M8" Malfunction of Transmission between Optional Controllers for
Centralized Control................................................................................... 230
3.3 "MA" Improper Combination of Optional Controllers for
Centralized Control................................................................................... 232
3.4 "MC" Address Duplication, Improper Setting .............................................. 234
4.1 "UE" Malfunction of Transmission between Centralized Controller and
Indoor Unit................................................................................................ 235
4.2 "M1" PC Board Defect ................................................................................ 237
Malfunction of Discharge Pipe Pressure Sensor ......... 191
Malfunction of Suction Pipe Pressure Sensor.............. 193
Malfunction of PC Board .............................................. 195
Malfunction of Inverter Radiating Fin
Inverter Compressor Abnormal .................................... 197
Inverter Current Abnormal ........................................... 198
Inverter Start up Error .................................................. 200
Malfunction of Transmission between
Inverter Over-Ripple Protection .................................... 203
Malfunction of Inverter Radiating Fin
SiUS30-604
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