Trouble shooting 10 E16. 4
INDOOR UNIT Error Method:
Communication Error Between
Controller and Indoor unit
Indicate or Display:
Indoor Unit : No Display
Outdoor Unit : No Display
Error Code : 1 6 (Peripheral Unit )
Detective Actuators:
Indoor unit Controller PCB circuit
Indoor unit Communication PCB
Detective details:
When the cut-off of network communication is detected (more than 90 seconds
passed since the last receipt of Outdoor unit signal).
Check Point 2 : Check the connection
After turning off the power, check and correct followings.
Is Indoor Communication PCB loose?
Check loose or removed connection of communication line Indoor unit => RB unit => Outdoor unit.
Refer to the Service Information -Network Abnormal -
When the signal amplifier is connected , Check the error indication of signal amplifier - Refer to the Installation manual-
Check Point 3 : Check Communication PCB
Replace Communication PCB of the Indoor units that have the error.
OK
Forecast of Cause :
1. Outside cause 2.Connection failure 3. Communication PCB failure 4. Controller PCB failure
Check the Error indication of RB unit. ( Refer to the Trouble shooting 69, 70)
Check Point 1 : Check if any outside cause such as voltage drop or noise
Instant voltage drop ----- Check if there is any electric equipment with a large load within the same circuit.
Momentary power failure ----- Check contact failure or leak current in power supply circuit
>>Check power supply for RB unit and Outdoor Unit as well.
Check if there is any equipment that causes harmonic wave near the power cable (Neon light bulb or any electronic equipment which
causes harmonic wave). And check the complete insulation of grounding.
>>If the same symptom does not reappear after resetting the power, possibility of noise is high.
Check Point 4 : Check Controller PCB
OK
If still the error is there, replace the communication PCB of the RB unit which corresponds to the error indicating Indoor unit.
Replace controller PCB of the Indoor units that have the error.
If still the error is there, replace the controller PCB of the RB unit which corresponds to the error indicating Indoor unit.
04-19
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: ......