Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 : Check Point 2 : Remove connector and check Thermistor resistance value
Check Point 1 : Check connection of Connector
CCheck Point 3 : Check voltage of Main PCB (DC5.0V)
10.012.515.820.225.933.644.058.2Resistance Value (k )
Temperature
OK
OK
5.36.58.0Resistance Value (k )
Temperature
Indoor unit Main PCB
Room temperature thermistor
When Room Temperature Thermistor open or short-circuit is detected.
1. Connector connection failure 2.Thermistor failure 3. Main PCB failure
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.
Thermistor Characteristics (Approx. value)
If Thermistor is either open or shorted, replace it and reset the power.
Make sure circuit diagram of indoor unit and check terminal voltage at Thermistor (DC5.0V)
If the voltage does not appear, replace Main PCB.
02-12
25°C 20°C15°C10°C5°C0°C-5°C-10°C
40°C
4.3
45°C35°C30°C
THERMISTOR
(ROOM TEMP.)
THERMISTOR
(PIPE)
BLACK
CN4
1
2
3
4
1
2
3
4
BLACK
BLACK
BLACK
Trouble shooting 9
INDOOR UNIT Error Method:
Indoor Room Thermistor Error
Indicate or Display:
Outdoor Unit : No indication
Indoor Unit : Operation lamp: 4 time Flash, Timer lamp: 1 time Flash
Economy lamp: Continuous flash.
ERROR CODE : [E : 41 ]
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