02-15
Trouble shooting 13
INDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause:
Human sensor error
Indoor unit Main PCB
2. Sensor failure
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1
2 When the signal from the sensor is "L"(=0V) for more than 10 min.
1
Detect the open condition of the sensor.
Check Point 1 : Check the connector connection and cable open
Check Point 2 : Conduction check
Check if connector is loose or removed
Check erroneous connection
Check if sensor cable is open
>>Reset Power when reinstalling due to removed connector or incorrect wiring.
OK (Sensor connections error)
OK(Sensor signal error)
Disconnect the sensor and check the 2-3pin
on sensor connector.
>>With conduction : Main PCB failure
>>Without conduction : Sensor failure
Check Point 2 : Voltage check
Disconnect the sensor and check the Voltage
of 1pin of the CN10 on the Main PCB
>>5V: Sensor failure
>>Other than 5V: Main PCB failure
Indicate or Display:
Error code : 44
POWER
MODE
ERROR
2
5
)
6
L
(
)
2
L
(
)
1
L
(
(L5)
(L4)
(L3)
15
PUMP
DOWN
LOW
NOISE
PEAK
CUT
Outdoor unit : Model 45.54
