Trouble shooting 85 E39. 3
INDOOR UNIT Error Method:
Indoor Unit Power Supply Error
of AC24V System
Indicate or Display:
Outdoor Unit : E.5 U.1
Error Code : 3 9
Detective Actuators:
Indoor Unit Power Supply PCB Circuit
Indoor Unit Power Trans
Indoor Unit Controller PCB
Detective details:
When the AC voltage of the Power Trans output , Is lower than 24V.
Check Point 2 : Check the connection of terminal
After turning off the power, check & correct of followings.
Check Point 3 : Check the Power Trans and Power Supply PCB
Check terminal voltage of Power Trans and Power Supply PCB connector CN113 (AC24V IN).
If AC 0V, Power Trans is failure
>>Replace Power Trans
OK
Forecast of Cause :
1. Terminal Connection Abnormal
2. Power Supply Abnormal
3. Power Trans
4. Power Supply PCB
5. Controller PCB
6. Cable Connection failure
>>Check the connection of terminal between Power Trans and Power Supply PCB(CN113),
and Check if there is a disconnection or short of the cable.
If AC24V, To the Check Point 4.
Check Point 1 : Check the Power Supply PCB and Controller PCB
Check the connection of connection terminal between Power Supply PCB(CN24) and
Controller PCB(CN114) and check if there is a disconnection or short of the cable.
OK
AC
04-88
+6
Check Point 4 : Replace the Power Supply PCB
Replace Power Supply PCB.
OK
Check Point 5 : Replace the Controller PCB
Replace Controller PCB and set up the original address.
OK
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: ......