Fujitsu AS*A09LKC User Manual

Trouble shooting 6
OUTDOOR UNIT Error Method:
Indicate or Display:
Detective Actuators: Detective details:
Forecast of Cause :
OKOK
OKOK
17.826.3
20
40.063.079.0101130168Resistance value (k )
151050Temperature (°C )
12.3
30 5040 60
2.03.44.66.38.7Resistance value (k )
120100908070Temperature (°C )
Outdoor Discharge Pipe Temperature
Thermistor Error
Outdoor Unit Inverter PCB
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. Inverter PCB failure
Check Point 1 : Check connection of connector
Check if connector is removed.
Check if connector is 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 Inverter 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 Inverter PCB.
02-08
Refer to error code table.
CN61 CN62
THERMISTOR
( DISCHARGE PIPE )
THERMISTOR
( HEAT EXCHANGER )
THERMISTOR
( OUTDOOR TEMP. )
1
4
2
3
1
4
2
3
1
2
3
1
2
3
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
CN71 CN70
THERMISTOR
( DISCHARGE PIPE )
THERMISTOR
( HEAT EXCHANGER )
THERMISTOR
( OUTDOOR TEMP. )
1
4
2
3
1
4
2
3
1
2
3
1
2
3
BLACK
BLACK
BLACK
BLACK
BLACK
BLACK
AO*R09LKC AO*R12LKC

Fujitsu AS*A09LKC Specifications

General

Brand	Fujitsu
Model	AS*A09LKC
Category	Air Conditioner
Language	English