Fujitsu AOU24RML1 User Manual

Trouble shooting 7
INDOOR UNIT
OUTDOOR UNIT Error Method:
Indicate or Display:
Refer to error code table.
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 :
Check Point 3 :
OKOK
OKOK
86°F
(30°C)
12.620.726.935.246.662.3115Resistance Value (k )
68°F
(20°C)
16.1
59°F
(15°C)
50°F
(10°C)
41°F
(5°C)
32°F
(0°C)
- 4°F
(-20°C)
14°F
(-10°C)
23°F
(-5°C)
Temperature
3.45 2.36 1.65Resistance Value (k )
122°F
(50°C)
140°F
(60°C)
158°F
(70°C)
5.187.97
104°F
(40°C)
Temperature
Outdoor Temperature
Thermistor Error
Outdoor Unit Main PCB Circuit
Outdoor Temperature Thermistor
When Outdoor 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.
02-14
THERMISTOR (DISCHARGE)
THERMISTOR (PIPE) THERMISTOR (OUTDOOR) THERMISTOR (COMPRESSOR) THERMISTOR (HEAT SINK)
BROWN BLACK BLACK BLUE BROWN
CN25 CN26 CN23 CN22 CN21
1 21 21 21 21 2

Fujitsu AOU24RML1 Specifications

General

Brand	Fujitsu
Model	AOU24RML1
Category	Air Conditioner
Language	English