Trouble shooting 51
No Operation (Power is ON)
Check Point 2 : Check outside cause at Indoor and Outdoor (Voltage drop or Noise)
Check Point 1 : Check indoor and outdoor installation condition
Check Point 3 : Check Electrical Components at Indoor and Outdoor
Indoor Unit - Check the voltage between pins 1-3 of the connector (on the control PCB) for connection with the remote controller.
>> If it is DC12V, Remote Control is defective (Controller PCB is normal) >> Replace Remote Control
>> If it is DC 0V, Controller PCB is defective (Check Remote Control once agein) >> Replace Controller PCB
If some of Indoor unit does not operate, replace the Communication PCB of the non-operative Indoor Unit.
>> If the symptom does not change, replace Controller PCB of Indoor Unit.
If all of Indoor Units do not operate, check the connection between Main PCB and Communication PCB of Outdoor Unit (Main Unit).
>> If the symptom does not change, replace Communication PCB of Outdoor Unit (Main Unit).
(If it did not work, replace Main PCB.)
Turn off Power and check/correct followings.
Isn't Communication PCB of Indoor Unit removed?
Is there loose or removed communication line of Indoor Unit and Outdoor Unit?
Check Terminator (DIP-SW SET 5) is installed on Outdoor Main PCB.
Check loose or removed communication line between each Outdoor Unit.
Check loose Communication PCB of each Outdoor Unit.
OK
OK
OK
DC
Forecast of Cause :
1. Setting/Connection failure 2. Outside cause
3. Electrical Component defective
Indoor Unit - Check incorrect wiring between Indoor Unit - Remote Control, or terminals between Indoor Units.
-
Or, check if there is an open cable connection.
Check address setting (Are all the address of Indoor and Outdoor correct?)
Are these Indoor Unit, Outdoor Unit, and Remote Control suitable model numbers to connect?
>> If there is some abnormal condition, correct it by referring to Installation manual and Data & Technical Manual.
Instant drop -----Check if there is a large load electric apparatus in the same circuit.
Momentary power failure ----- Check if there is a defective contact or leak current in the power supply circuit.
Noise ----- Check if there is any equipment causing harmonic wave near electric line (Neon bulb or electric equipment that may cause
harmonic wave).
Check the complete insulation of grounding.
04-60
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: ......