Outdoor Heat Exchanger Temperature Sensor(Outlet) Error - Fujitsu ASU9RL Service Instruction

Trouble shooting 5
OUTDOOR UNIT Error Method:
Outdoor Heat Exchanger Temperature
Sensor (Outlet) Error
Detective Actuators:
Outdoor Unit Main PCB Circuit
Heat Exchanger Temperature Thermistor
Forecast of Cause :
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.
OK OK
Check Point 2 : Remove connector and check Thermistor resistance value Check Point 2 :
Thermistor Characteristics (Approx. value)
Temperature
Resistance Value (k )
Temperature
Resistance Value (k )
If Thermistor is either open or shorted, replace it and reset the power.
OK OK
Check Point 3 :
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)
3 2 1
3 2 1
CN62
If the voltage does not appear, replace Main PCB.
Indicate or Display:
Outdoor Unit
Indoor Unit
ERROR CODE : [E : 06]
Detective details:
When Heat Exchanger Temperature Thermistor (Outlet) open or
short-circuit is detected at power ON or while running the compressor.
14°F 23°F 32°F 41°F
(-10°C) (-5°C) (0°C) (5°C)
27.8 21.0 16.1 12.4
95°F 104°F 113°F 122°F
(35°C) (40°C) (45°C) (50°C)
3.11 2.53 2.08 1.71
4 3 2 1
4 3 2 1
CN61
06-09
: LED 0.1sec ON/ 0.1sec OFF
: Operation LED : 3 times, Timer LED : 3 times
50°F 59°F 68°F 77°F
(10°C) (15°C) (20°C) (25°C)
9.63 7.56 5.98 4.77
140°F 158°F 176°F 194°F
(60°C) (70°C) (80°C) (90°C)
1.19 0.840 0.606 0.446
86°F
(30°C)
3.84
212°F
(100°C)
0.333
DC