Daikin FXDQ25NVE [103/218] Troubleshooting by indication on the centralized remote controller 62

Daikin FXDQ25NVE [103/218] Troubleshooting by indication on the centralized remote controller 62
SiBE39-402
94 Troubleshooting
4.31 L9” Outdoor Unit: Inverter Start up Error..............................................141
4.32 LC” Outdoor Unit: Malfunction of Transmission between Inverter and
Control PC Board .................................................................................142
4.33 P4” Outdoor Unit: Malfunction of Inverter Radiating Fin
Temperature Rise Sensor ....................................................................144
4.34 PJ” Outdoor Unit: Faulty Combination of Inverter and Fan Driver .......145
4.35 UO” Low Pressure Drop Due to Refrigerant Shortage or
Electronic Expansion Valve Failure......................................................146
4.36 U2” Power Supply Insufficient or Instantaneous Failure ......................147
4.37 U3” Check Operation not Executed......................................................149
4.38 U4” Malfunction of Transmission between Indoor Units and
Outdoor Units .......................................................................................150
4.39 U5” Malfunction of Transmission between Remote Controller and
Indoor Unit............................................................................................152
4.40 U8” Malfunction of Transmission between Master and
Slave Remote Controllers ....................................................................153
4.41 U9” Malfunction of Transmission between Indoor and
Outdoor Units in the Same System......................................................154
4.42 UA” Excessive Number of Indoor Units................................................156
4.43 UC” Address Duplication of Central Remote Controller........................157
4.44 UE” Malfunction of Transmission between Central Remote Controller and
Indoor Unit............................................................................................158
4.45 UF” Refrigerant System not Set, Incompatible Wiring/Piping...............160
4.46 UH” Malfunction of System, Refrigerant System Address Undefined...161
5. Troubleshooting by Indication on the Centralized Remote Controller.162
5.1 UE” Malfunction of Transmission between Centralized Remote Controller
and Indoor Unit.....................................................................................162
5.2 M1” PC Board Defect ............................................................................163
5.3 M8” Malfunction of Transmission between Optional Controllers for
Centralized Control...............................................................................164
5.4 MA” Improper Combination of Optional Controllers for
Centralized Control...............................................................................165
5.5 MC” Address Duplication, Improper Setting..........................................167
6. Troubleshooting by Indication on the Unified ON/OFF Controller.......168
6.1 Operation Lamp Blinks.........................................................................168
6.2 Display “Under Host Computer Integrate Control” Blinks
(Repeats Single Blink)..........................................................................170
6.3 Display “Under Host Computer Integrate Control” Blinks
(Repeats Double Blink) ........................................................................173
7. Troubleshooting (OP: Schedule Timer)...............................................174
7.1 UE” Malfunction of Transmission between Central Remote Controller and
Indoor Unit............................................................................................174
7.2 M1” PC Board Defect ............................................................................176
7.3 M8” Malfunction of Transmission between Optional Controllers for
Centralized Control...............................................................................177
7.4 MA” Improper Combination of Optional Controllers for
Centralized Control...............................................................................178
7.5 MC” Address Duplication, Improper Setting..........................................180
8. Check..................................................................................................181

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