PACD011001C2
482 Troubleshooting UM Combination “MA1R Series” Using R-407C
3.30 Malfunction of Transmission
Between Master and Slave Remote Controllers ..................................527
3.31 Malfunction of Transmission
Between Indoor and Outdoor Units in the Same System.....................528
3.32 Excessive Number of Indoor Units.......................................................529
3.33 Address Duplication of Central Remote Controller...............................530
3.34 Refrigerant System not Set, Incompatible Wiring/Piping......................531
3.35 Malfunction of System, Refrigerant System Address Undefined..........532
4. Failure Diagnosis for Inverter System.................................................533
4.1 Points of Diagnosis...............................................................................533
4.2 How to Use The Monitor Switch on The Inverter PC Board.................534
5. Troubleshooting (Inverter)...................................................................535
5.1 Outdoor Unit: Malfunction of Inverter Radiating
Fin Temperature Rise...........................................................................535
5.2 Outdoor Unit: Inverter Instantaneous Over-Current .............................536
5.3 Outdoor Unit: Inverter Thermostat Sensor, Compressor Overload......537
5.4 Outdoor Unit: Inverter Stall Prevention, Compressor Lock ..................538
5.5 Outdoor Unit: Malfunction of Transmission
Between Inverter and Control PC Board..............................................539
5.6 Power Supply Insufficient or Instantaneous Failure .............................540
5.7 Outdoor Unit: Inverter Over-Ripple Protection .....................................541
5.8 Outdoor Unit: Malfunction of Inverter Radiating
Fin Temperature Rise Sensor ..............................................................542
6. Troubleshooting (OP: Central Remote Controller)..............................543
6.1 Malfunction of Transmission
Between Central Remote Controller and Indoor Unit...........................543
6.2 PC Board Defect ..................................................................................544
6.3 Malfunction of Transmission
Between Optional Controllers for Centralised Control..........................545
6.4 Improper Combination of Optional Controllers
for Centralised Control .........................................................................546
6.5 Address Duplication, Improper Setting.................................................547
7. Troubleshooting (OP: Schedule Timer)...............................................548
7.1 Malfunction of Transmission
Between Central Remote Controller and Indoor Unit...........................548
7.2 PC Board Defect ..................................................................................549
7.3 Malfunction of Transmission
Between Optional Controllers for Centralised Control..........................550
7.4 Improper Combination of Optional Controllers
for Centralised Control .........................................................................551
7.5 Address Duplication, Improper Setting.................................................552
8. Troubleshooting (OP: Unified ON/OFF Controller) .............................553
8.1 Operation Lamp Blinks.........................................................................553
8.2 Display “Under Host Computer Integrate Control” Blinks
(Repeats Single Blink)..........................................................................554
8.3 Display “Under Host Computer Integrate Control” Blinks
(Repeats Double Blink) ........................................................................556
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