Fujitsu ASG30LMTA Service Instruction page 49

Trouble shooting 13
INDOOR UNIT Error Method:
Human sensor error
Detective Actuators:
Indoor unit Main PCB
Forecast of Cause:
1. Connection failure
Check Point 1 : Check the connector connection and cable open
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)
Check Point 2 : Conduction check
Disconnect the sensor and check the 2-3pin
on sensor connector.
>>With conduction : Main PCB failure
>>Without conduction : Sensor failure
AMP Air Conditioning
Indicate or Display:
Indoor Unit :
Operation lamp: 4 times Flash,
Timer lamp
Detective details:
Detect the open condition of the sensor.
1
2 When the signal from the sensor is "L"(=0V) for more than 10 min.
2. Sensor failure
02-16
Wired Remote Controller :
ERROR CODE : [E : 44]
: 4 times Flash
3. Indoor unit Main PCB failure
OK(Sensor signal error)
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
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