SERVICE PARTS INFORMATION 4
Inverter PCB
Filter PCB
Check Filter PCB -2
Check Filter PCB -1
Check Filter PCB -3
Replace defective electric
parts.
Replace Inverter PCB
Replace Inverter PCB
Replace Inverter PCB
YES
YES
Electric parts check
Replace Filter PCB
Replace Filter PCB
NO
YES
YES
NO
PCB pattern and parts on PCB defective?
04-87
(2) Replace blown fuse.
(3) Disconnect all the connection wires between the Filter PCB - Inverter PCB.
(4) Is there a short between L- N?
Check Inverter PCB -1
(5) Is there a open between the two ends of the resistance R385 or R386?
(6) Is there a short between wire :W380 and terminal TM394.
YES
YES
Check Inverter PCB -3
YES
(8) Disconnect the connection wires (2) between the Inverter PCB and ACTPM
(9) Is there a short between the wires of step (8)?
Replace Inverter PCB
YES
NO
NO
Check Inverter PCB -4
(10) Disconnect the connection wires (8-pin connector)
between the Inverter PCB - Main PCB.
(11) Is there a short between Inverter PCB side connector pins 1-2 and 2-3?
Inverter PCB side short circuit
Replace Inverter PCB
Filter PCB side short circuit
Replace Filter PCB
YES
Check Inverter PCB -5
(12) Disconnect the connection wires (3-pin connector)
between the Inverter PCB - Filter PCB.
(13) Is there a short between Inverter PCB side connector
pins 1-3 and Filter PCB side connector pins 1-3?
Turn on the power.
(14) Reconnect all the connection wires disconnected up to (1)-(13) to their original places.
(15) Turn on the AC power.
If the LED of the Inverter PCB does not light or blink, replaces the Inverter PCB-Filter PCB.
NO
NO
NO
Check Inverter PCB -2
(7) Is there a open between each terminals of Diode D380 or D381.
NO
NO
(1) Using a tester, measure the resistance value of both ends of the fuses (P501). (*Cannot be checked visually.)
Is Fuse (45A/500V) open?
Are the following parts defective?
ACTPM
Choke Coil
Summary of Contents for Airstage J-II
Page 1: ...Small VRF system for light commercial and home use SERVICE MANUAL ...
Page 2: ......
Page 6: ......
Page 7: ...1 TEST RUN ...
Page 8: ......
Page 27: ...2 OUTDOOR UNIT OPERATION CONTROL ...
Page 28: ......
Page 42: ......
Page 43: ...3 INDOOR UNIT OPERATION ...
Page 44: ......
Page 63: ...4 TROUBLE SHOOTING ...
Page 73: ......
Page 170: ......
Page 171: ...5 APPENDING DATA UNIT ...
Page 172: ......
Page 174: ...MODELS AUXB07 AUXB09 AUXB12 AUXB14 AUXB18 AUXB24 05 02 5 2 WIRING DIAGRAM 5 2 1 Indoor Unit ...
Page 175: ...MODELS AUXD18 AUXD24 AUXA30 AUXA36 AUXA45 AUXA54 05 03 ...
Page 176: ...MODELS ARXB07 ARXB09 ARXB12 ARXB14 ARXB18 05 04 ...
Page 177: ...MODEL ARXB24 MODELS ARXB30 ARXB36 05 05 ...
Page 178: ...MODEL ARXB45 05 06 ...
Page 179: ...MODEL ARXA24 MODELS ARXA30 ARXA36 ARXA45 05 07 ...
Page 180: ...MODELS ARXC36 ARXC45 ARXC60 MODELS ARXC72 ARXC90 05 08 ...
Page 181: ...MODELS ARXD07 ARXD09 ARXD12 ARXD14 ARXD18 ARXD24 05 09 ...
Page 182: ...MODELS AB A12 AB A14 AB A18 AB A24 05 10 ...
Page 183: ...MODELS AB A12LBTH AB A14LBTH 05 11 AB A18LBTH AB A24LBTH ...
Page 184: ...05 12 MODELS AB A30 AB A36 AB A45 AB A54 ...
Page 185: ...05 13 MODELS AB A30LBTH AB A36LBTH AB A45LBTH AB A54LBTH ...
Page 186: ...MODELS AS A07 AS A09 AS A12 AS A14 05 14 ...
Page 187: ...MODELS AS E07 AS E09 AS E12 AS E14 05 15 ...
Page 188: ...MODELS AS A18 AS A24 AS A30 05 16 ...
Page 189: ...05 17 MODELS AS A18LACH AS A24LACH AS A30LACH ...
Page 190: ...05 18 MODELS AJ A36 45 54LALH 5 2 2 Outdoor Unit ...
Page 195: ...6 DISASSEMBLY PROCESS ...
Page 196: ......