Fujitsu AOTG18KMTC, Инструкция по эксплуатации

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Trouble shooting 7
INDOOR UNIT
INDOOR UNIT Error Method:
Indicate or Display:
Detective Actuators:
Detective details:
Forecast of Cause :
Check Point 2 :
62.9 103.3 134.2 176.0 233.2 312.3 579.6 1131.9 Resistance Value (k )
Temperature
OK OK
OK
17.1 25.6 39.6 Resistance Value (k )
Temperature
Indoor unit Heat Ex. Middle temp.
sensor error
Indoor unit Controller PCB
Heat Ex. temperature thermistor
When Heat Ex. Temperature Thermistor open or short-circuit is detected.
1. Connector connection failure 2.Thermistor failure 3. Controller 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 Controller PCB (DC5.0V)
Make sure circuit diagram of indoor unit and check terminal voltage at Thermistor (DC5.0V)
If the voltage does not appear, replace Controller PCB.
20 °C 10 °C 5 °C 0 °C -5°C -10°C -20°C -30°C
50 °C
11.6
60°C
10.4
63°C 40 °C 30 °C
Outdoor Unit : No indication
Indoor Unit : Operation lamp: 4 times Flash, Timer lamp: 2 times Flash
Economy lamp: Continuous flash.
ERROR CODE : [E : 42]
THERMISTOR
(ROOM TEMP.)
THERMISTOR
(PIPE)
BLACK
CN1
1
2
3
4
1
2
3
4
BLACK
BLACK
BLACK
02-17