Trouble shooting 81
E39. 1
INDOOR UNIT Error Method:
Indoor Unit power supply error for
FAN motor 1 (2)
Indicate or Display:
Outdoor Unit : E.5 U.1
Error Code : 3 9 , 3 9 . 1 ( 2 )
Detective Actuators:
Indoor Unit Controller PCB Circuit
Indoor Unit Power supply PCB Circuit
Detective details:
When the DC power input for Fan motor < W500 - W501 (W530 - W531) on
the Power supply PCB > becomes lower voltage than the specified voltage.
Check Point 2 : Check wire connection
Wire lose connection / damage between the CN21 on the Controller PCB and CN250 on the Power supply PCB.
In case of Model 72, between W530 (W531) on the Power supply PCB and Capacitor.
>>If there is abnormal on the wire, replace it
OK
Forecast of Cause :
1. Noise momentary open, voltage drop 2. Wire connection 3. Fan motor
4. Peripheral electric devices 5. Power supply PCB 6. Controller PCB
04-88
+2
(E39. 2)
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 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.
OK
Check Point 3 : Check rotation of Fan / wire resistance
Rotate the applicable fan by hand when operation is off.
OK
Disconnect the connector from the Power supply PCB and Check resistance value of Motor connector.
(Refer to the service parts information 21)
Check Point 4 : Check peripheral devices, Posistor, Capacitor, Diode bridge
Check resistance value, short circuit, visible damage
>>If there is abnormal , replace it
Check Point 5 : Replace Power supply PCB
Change Power supply PCB
Check Point 6 : Replace Controller PCB
Change Controller PCB and set up the original address.
OK
NG
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: ......