Trouble shooting 12
OUTDOOR UNIT Error Method:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 :
6.0
9.6
12.4
16.1
21.0
27.8
Resistance Value (k )
Temperature
OK
OK
OK
OK
3.8
0.6
0.8
1.2
1.7
2.5
Resistance Value (k )
Temperature
Heat Ex. Liquid Outlet
Thermistor Error
Outdoor unit Main PCB
Heat exchanger temperature thermistor
When Heat exchanger 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.
02-15
-5°C
-10°C
95.6
-30°C
50.3
-20°C
80°C
70°C
60°C
30°C
20°C
10°C
5°C
0°C
50°C
40°C
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)
If the voltage does not appear, replace Main PCB.
THERMISTOR
(PIPE)
THERMISTOR
(DISCHARGE)
THERMISTOR
(OUTDOOR)
BLACK
BLACK
BROWN
BROWN
BLACK
BLACK
1
2
3
4
1
2
3
4
1
2
3
1
2
3
CN71
CN70
Indicate or Display:
Refer to error code table.
Summary of Contents for AO*G18LFC series
Page 3: ...1 DESCRIPTION OF EACH CONTROL OPERATION R410A WALL MOUNTED type INVERTER ...
Page 23: ...2 TROUBLE SHOOTING R410A WALL MOUNTED type INVERTER ...
Page 55: ...3 APPENDING DATA R410A WALL MOUNTED type INVERTER ...
Page 63: ...1116 Suenaga Takatsu ku Kawasaki 213 8502 Japan Sep 2011 Printed in Japan ...
