Fujitsu ASU9RL Service Instruction

Trouble shooting 7
INDOOR UNIT
OUTDOOR UNIT Error Method:
Indicate or Display:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 :
Check Point 3 :
17.826.340.062.679.1101130169Resistance Value (k )
Temperature
OKOK
OKOK
12.3
1.222.003.434.606.278.70Resistance Value (k )
Temperature
Outdoor Discharge Pipe Temperature
Sensor 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 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 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.
06-11
Outdoor Unit : LED 0.1sec ON/ 0.1sec OFF
Indoor Unit : Operation LED : 3 times, Timer LED : 2 times
ERROR CODE : [E : 0C]
THERMISTOR (PIPE) THERMISTOR (DISCHARGE) THERMISTOR (OUTDOOR)
BLACK
CN62 CN61
3 2 1 4 3 2 1
BROWN
BLACK
3 2 1 4 3 2 1
194°F
(90°C)
176°F
(80°C)
158°F
(70°C)
140°F
(60°C)
212°F
(100°C)
86°F
(
30°C)
68°F
(20°C)
59°F
(15°C)
50°F
(10°C)
41°F
(5°C)
32°F
(0°C)
122°F
(
50°C)
104°F
(
40°C)
284°F
(140°C)
248°F
(120°C)

Fujitsu ASU9RL Specifications

General

Brand	Fujitsu
Model	ASU9RL
Category	Air Conditioner
Language	English