Detective Actuators:
Indoor unit Controller PCB
Heat exchanger (MID) thermistor
Detective details:
Heat exchanger (MID) thermistor is open or short is detected always.
Forecast of Cause :
1. Connector failure connection 2. Thermistor failure 3. Controller PCB failure
Check Point 1 : Check connection of Connector
Check if connector is loose or removed
Check erroneous connection
Check if thermistor cable is open
>>Reset Power when reinstalling due to removed connector or incorrect wiring.
OK
02-10
Trouble shooting 8
INDOOR UNIT Error Method:
Indoor heat ex. thermistor error
OK
Check Point 3 : Check voltage of Controller PCB (DC5.0V)
Make sure circuit diagram of each indoor unit and check terminal voltage at Thermistor (DC5.0V)
DC
Thermistor Characteristics (Rough value)
If Thermistor is either open or shorted, replace it and reset the power.
Check Point 2 : Remove connector and check Thermistor resistance value
Resistance Value ( )
Temperature (°C)
Resistance Value ( )
Temperature (°C)
-30 -20 -10 -5 0 5 10 15 20
25 30 35 40 45 50 55 60 63
)
°C)
)
°C)
1013.1 531.5 292.9 221.1 168.6 129.8 100.9 79.1 62.5
49.8 40.0 32.4 26.3 21.6 17.8 14.8 12.3 11.1
If the voltage does not appear, replace Controller PCB.
H/E (MID) Thermistor
Room Temp. Thermistor
ARCG040LSTA
BLACK
BLACK
1
2
1
2
1 1
2 2
CN5
CN8
GRAY
GRAY
1
2
CN7
Indicate or Display:
Outdoor Unit : No indication
Indoor Unit : Operation lamp: 4 time Flash, Timer lamp: 2 time Flash
Economy lamp : Continuous flash.
ERROR CODE : [E : 42]
Содержание AOCG040LBTA
Страница 3: ...R410A SLIM DUCT type INVERTER 1 DESCRIPTION OF EACH CONTROL OPERATION ...
Страница 26: ...2 TROUBLE SHOOTING R410A SLIM DUCT type INVERTER ...
Страница 59: ...3 APPENDING DATA SLIM DUCT type INVERTER R410A ...
Страница 67: ...3 3 17 Suenaga Takatsu ku Kawasaki 213 8502 Japan Jun 2016 Printed in Japan ...