Trouble shooting 19
OUTDOOR UNIT Error Method:
Indicate or Display:
Outdoor Unit : LED 8 times blink
ERROR CODE : No indication
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 :
Check Point 3 :
OKOK
OKOK
THERMISTOR
(DISCHARGE)
THERMISTOR
(PIPE)
THERMISTOR
(OUTDOOR)
THERMISTOR
(COMPRESSOR)
THERMISTOR
(HEAT SINK)
BROWN
BLACK
BLACK
BLUE
BROWN
CN21 CN22 CN23 CN26 CN25
1 2 1 2 1 2 1 2 1 2
Heat Sink Temperature Sensor Error
Outdoor Unit Main PCB Circuit
Heat Sink Temperature Thermistor
When Heat Sink Temperature Thermistor open or short-circuit is
detected at power ON or while running the compressor.
1. Connector connection failure 2.Thermistor failure 3. Main PCB failure
Check Point 1 : Check connection of Connector
Check if connector is removed.
Check erroneous connection.
Check if thermistor cable is open.
>>Upon correcting the removed connector or mis-wiring, reset the power.
Check Point 2 : Remove connector and check Thermistor resistance value
Thermistor Characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
Check Point 3 : Check voltage of Main PCB (DC5.0V)
Make sure circuit diagram of outdoor unit and check terminal voltage at Thermistor (DC5.0V)
If the voltage does not appear, replace Main PCB.
07-21
30°C
6.109.7312.416.1
Resistance
Value (k )
20°C
7.67
15°C10°C5°C0°C
Temperature
1.79
1.25 0.89
Resistance
Value (k )
50°C
60°C 70°C
0.65
80°C
0.48
90°C
0.36
100°C
0.21
12.5 8.78 6.31 4.61 3.43 1.98
120°C
2.623.95
64.5105135176 81.8
18.126.941.1
40°C
Temperature
AR*18L/ 24L
AR*30L/36L/45L/54L
AR*18L/ 24L
AR*30L/36L/45L/54L
To Next Page
Loading...
