Trouble shooting 16
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
17.826.3
68°F
40.062.578.5101128167Resistance Value (k )
59°F50°F41°F32°FTemperature(°F)
OK
OK
12.3
86°F
122°F104°F
140°F
2.003.434.606.278.69Resistance Value (k )
248°F212°F194°F176°F158°FTemperature(°F)
Discharge Thermistor Error
Outdoor Unit Main PCB Circuit
Discharge Pipe Temperature Thermistor
When Discharge Pipe 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 miss-wiring, reset the power.
Check Point2: Remove connector and check Thermistor resistance value
Thermistor Characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
Indicate or Display:
Outdoor Unit : LED 1 : 2 time Flash
Indoor Unit : Operation lamp: 7 time Flash, Timer lamp: 1 time Flash
Economy lamp: Continuous flash.
ERROR CODE : [E : 71]
Check Point3: 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.
THERMISTOR
(DISCHARGE)
BROWN
BROWN
1
2
1
2
THERMISTOR
(COMPRESSOR)
1
2
BLUE
BLACK
BLACK
THERMISTOR
(HEAT SINK)
THERMISTOR
(OUTDOOR)
THERMISTOR
(PIPE)
1
2
1
2
02-20
CN25
CN26
CN23
CN22
CN21
BLACK
1
2
BLACK
THERMISTOR
(PIPE MID)
CN24
WHITE
GREEN
BLUE
RED
YELLOW
To Next Page
Loading...
