SERVICE PARTS INFORMATION 4
Inverter PCB
Filter PCB (INV)
Check Filter PCB (INV) -2
Check Filter PCB (INV) -1
Check Filter PCB (INV) -3
Replace defective electric parts.
Replace Inverter PCB
YES
YES
Electric parts check
Replace Filter PCB (INV)
Replace Filter PCB (INV)
NO
YES
YES
NO
PCB pattern and parts on PCB defective?
(2) Replace blown fuse.
(3) Disconnect all the connection wires between the Filter
PCB (INV) - diode bridge.
(4) Is there a short between L1-L2, L2-L3, and L1-L3?
Check Inverter PCB -1
YES
(5) Disconnect the connection wires (2) between
the Inverter PCB - electrolytic capacitor.
(6) Is there a short between the wires of step (5)?
Replace Inverter PCB
YES
NO
NO
Check Inverter PCB -2
(7) Disconnect the connection wires (8-pin connector)
between the Inverter PCB - Main PCB.
(8) Is there a short between Inverter PCB side connector
pins 1-2?
NO
Inverter PCB side short
Replace Inverter PCB
Filter PCB(INV) side short
Replace Filter PCB(INV)
YES
Check Inverter PCB -3
(9) Disconnect the connection wires (3-pin connector)
between the Inverter PCB - Filter PCB(INV).
(10) Is there a short between Inverter PCB side connector
pins 1-3 and Filter PCB(INV) side connector pins 1-3?
Turn on the power.
(11) Reconnect all the connection wires disconnected up to (1)-(10) to their original places.
(12) Turn on the AC power.
If the LED of the Inverter PCB does not light or blink, replaces the Inverter PCB-Filter PCB(INV).
NO
NO
(1) Using a tester, measure the resistance value of both ends
of the fuses (P511/512/513). (*Cannot be checked visually.)
Are Fuses (45A/500V) open?
Are the following parts defective?
*For the check method, refer to 6-5.
3-phase diode bridge
Resistor, Cement (Surge prevention/ Balance)
Magnetic Relay
Inverter compressor reactor
Capacitor
Reactor
04-98
Summary of Contents for Airstage UTP-RU01AH
Page 1: ...SERVICE MANUAL 208 230V 60Hz ...
Page 5: ...1 TEST RUN ...
Page 6: ......
Page 34: ...2 OUTDOOR UNIT OPERATION CONTROL ...
Page 59: ...3 INDOOR UNIT OPERATION ...
Page 60: ......
Page 82: ......
Page 83: ...4 TROUBLE SHOOTING ...
Page 84: ......
Page 186: ...04 96 0 24 AOUA120 208 230 AOUA72 90 0 19 RED WHITE BLACK U V W ...
Page 208: ...5 APPENDING DATA UNIT ...
Page 209: ......
Page 215: ...CASSETTE TYPE MODELS AUUB18TLAV AUUB24TLAV AUUB30TLAV AUUB36TLAV 05 06 ...
Page 217: ...MEDIUM STATIC PRESSURE DUCT TYPE MODEL ARUM24TLAV 05 08 MODEL ARUM30TLAV ARUM36TLAV ...
Page 218: ...HIGH STATIC PRESSURE DUCT TYPE MODELS ARUH36TLAV ARUH48TLAV ARUH60TLAV 05 09 ...
Page 219: ...FLOOR CEILING TYPE MODELS ABUA12TLAV ABUA14TLAV ABUA18TLAV ABUA24TLAV 05 10 ...
Page 220: ...CEILING TYPE MODELS ABUA30TLAV ABUA36TLAV INDOOR UNITS INDOOR UNITS 05 11 ...
Page 221: ...WALL MOUNTED TYPE MODELS ASUA7TLAV ASUA9TLAV ASUA12TLAV ASUA14TLAV 05 12 ...
Page 222: ...MODELS ASUB18TLAV ASUB24TLAV 05 13 ...
Page 224: ...MODEL UTP RU01AH MODEL UTP RU01BH 5 2 3 RB Unit 05 15 ...
Page 225: ...MODEL UTP RU01CH 05 16 ...
Page 226: ...MODEL UTP RU04BH 05 17 ...
Page 227: ...MODELS AAUA48TLAV 5 2 4 Outdoor Air Unit 05 18 MODELS AAUA72TLAV ...
Page 228: ...MODELS AAUA96TLAV 05 19 ...
Page 230: ...6 DISASSEMBLY PROCESS ...
Page 245: ......