Fujitsu Airstage V series User Manual

Thermistor Characteristics (Rough value)
If Thermistor is either open or shorted, replace it and reset the power.
Trouble shooting 5
INDOOR UNIT Error Method:
Heat Exchanger Inlet Sensor Error
Indicate or Display:
Indoor Unit : Operation LED 3 Times Blink, Timer LED Flash
Swing LED 1 Time Blink
Outdoor Unit : LED1 Flash, LED6 1Time Blink
ERROR CODE : E : 0b
Detective Actuators:
Indoor Unit Controller PCB Circuit
Heat Exchanger Inlet Thermistor
Detective details:
When open or shorted Heat Exchanger Inlet Thermisor is detected
at Power ON.
Resistance Value ( )
Temperature (°C)
31.7
35
39.6
30
49.762.980.3103.3134.2176.0
2520151050
Resistance Value ( )
Temperature (°C)
17.120.825.6
504540
OK
Forecast of Cause : 1. Connector defective connection 2. Thermistor defective 3. Controller PCB defective
Check Point 1 : Check connection of Connector
p Check if connector is loose or removed
p Check erroneous connection
p Check if thermistor cable is open
>>Reset Power when reinstalling due to removed connector or incorrect wiring.
OK
Check Point 2 : Remove connector and check Thermistor resistance value
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)
Duct Schematic Diagram (Connector connection) Small size Wall mount Schematic Diagram(Directsoldering to PCB)
If the voltage does not appear, replace Controller PCB and reset the original address.
H/E Inlet Thermistor
(CN20 Wire:Black)
H/E Middle Thermistor
(CN20 Wire:Gray)
Room Temp. Thermistor
(CN19 Wire:Black)
DC
Room Temp. Thermistor
(CN6 Wire:Black)
H/E Inlet Thermistor
(CN13 Wire:Black)
H/E Middle Thermistor
(CN7 Wire:Gray)
06-13

Fujitsu Airstage V series Specifications

General

Brand	Fujitsu
Model	Airstage V series
Category	Air Conditioner
Language	English