Trouble shooting 4
INDOOR UNIT Error Method:
Room Temperature Sensor Error
Indicate or Display:
Indoor Unit : Operation LED 4 times Flash, Timer LED 1 Times Flash,
Filter LED Continuous Flash.
Outdoor Unit : E.5 U.1
Error Code : 4 1
Detective Actuators:
Indoor Unit Controller PCB Circuit
Indoor Temperature Thermistor
Detective details:
When Indoor thermistor open or shortage is detected at power ON.
Forecast of Cause :
1. Connector defective connection 2. Thermistor defective 3. Controller PCB defective
Check Point 2 : Remove connector and check Thermistor resistance value
Thermistor Characteristics (Rough value)
If Thermistor is either open or shorted, replace it and reset the power.
Check Point 1 : Check connection of Connector
Check if connector is loose or removed
Check erroneous connection
Check if thermistor cable is open
>>Reset Power when reinstalling due to removed connector or incorrect wiring.
6.5
35
8.0
30
10.0
12.5
15.8
20.1
25.2
33.6
Resistance Value ( )
25
20
15
10
5
0
Temperature (°C)
3.5
4.3
5.3
Resistance Value ( )
50
45
40
Temperature (°C)
OK
OK
Check Point 3 : Check voltage of Controller PCB (DC5.0V)
Make sure circuit diagram of each indoor unit and check terminal voltage at Thermistor (DC5.0V)
Small size Wall mount Schematic Diagram(Direct soldering to PCB)
If the voltage does not appear, replace Controller PCB and set up the original address.
H/E Inlet Thermistor
(CN20 Wire:Black)
H/E Outlet Thermistor
(CN20 Wire:Gray)
Room Temp. Thermistor
(CN19 Wire:Black)
Room Temp. Thermistor
(CN10 Wire:Black)
H/E Intlet Thermistor
(CN12 Wire:Black)
H/E Outlet Thermistor
(CN11 Wire:Gray)
DC
Cassette Schematic Diagram (Connector connection)
Wall mount Schematic Diagram (Connector connection)
H/E Outlet Thermistor
(CN9 Wire:Gray)
H/E Inlet Thermistor
(CN9 Wire:Black)
Room Temp. Thermistor
(CN8 Wire:Black)
H/E Outlet Thermistor
(CN17Wire:Gray)
H/E Inlet Thermistor
(CN17 Wire:Black)
Room Temp. Thermistor
(CN16 Wire:Black)
04-14
Duct Schematic Diagram (Connector connection)
Содержание Airstage J-II
Страница 1: ...Small VRF system for light commercial and home use SERVICE MANUAL ...
Страница 2: ......
Страница 6: ......
Страница 7: ...1 TEST RUN ...
Страница 8: ......
Страница 27: ...2 OUTDOOR UNIT OPERATION CONTROL ...
Страница 28: ......
Страница 42: ......
Страница 43: ...3 INDOOR UNIT OPERATION ...
Страница 44: ......
Страница 63: ...4 TROUBLE SHOOTING ...
Страница 73: ......
Страница 170: ......
Страница 171: ...5 APPENDING DATA UNIT ...
Страница 172: ......
Страница 174: ...MODELS AUXB07 AUXB09 AUXB12 AUXB14 AUXB18 AUXB24 05 02 5 2 WIRING DIAGRAM 5 2 1 Indoor Unit ...
Страница 175: ...MODELS AUXD18 AUXD24 AUXA30 AUXA36 AUXA45 AUXA54 05 03 ...
Страница 176: ...MODELS ARXB07 ARXB09 ARXB12 ARXB14 ARXB18 05 04 ...
Страница 177: ...MODEL ARXB24 MODELS ARXB30 ARXB36 05 05 ...
Страница 178: ...MODEL ARXB45 05 06 ...
Страница 179: ...MODEL ARXA24 MODELS ARXA30 ARXA36 ARXA45 05 07 ...
Страница 180: ...MODELS ARXC36 ARXC45 ARXC60 MODELS ARXC72 ARXC90 05 08 ...
Страница 181: ...MODELS ARXD07 ARXD09 ARXD12 ARXD14 ARXD18 ARXD24 05 09 ...
Страница 182: ...MODELS AB A12 AB A14 AB A18 AB A24 05 10 ...
Страница 183: ...MODELS AB A12LBTH AB A14LBTH 05 11 AB A18LBTH AB A24LBTH ...
Страница 184: ...05 12 MODELS AB A30 AB A36 AB A45 AB A54 ...
Страница 185: ...05 13 MODELS AB A30LBTH AB A36LBTH AB A45LBTH AB A54LBTH ...
Страница 186: ...MODELS AS A07 AS A09 AS A12 AS A14 05 14 ...
Страница 187: ...MODELS AS E07 AS E09 AS E12 AS E14 05 15 ...
Страница 188: ...MODELS AS A18 AS A24 AS A30 05 16 ...
Страница 189: ...05 17 MODELS AS A18LACH AS A24LACH AS A30LACH ...
Страница 190: ...05 18 MODELS AJ A36 45 54LALH 5 2 2 Outdoor Unit ...
Страница 195: ...6 DISASSEMBLY PROCESS ...
Страница 196: ......