Mitsubishi Heavy Industries FDT45KXE6 User Manual

–
335
–
Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
E7
Intake air temperature thermistor anomaly
Keeps flashing 1 time flash
Keeps flashing Stays Off
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
NO
NO
YES
Is the
connection of intake air
temperature sensor connector
OK?
Are the
characteristics of intake air
temperature sensor
OK?
YES
15
10
5
0 10 30 4020 50
Temperature-resistance characteristic
Temperature sensor resistance (k
Ω
)
Temperature (°C)
Note (1) 22.5kΩ at -6
°C
5kΩ at 25
°C
Correct.

Connect
connector.
Defective intake air
temperature thermistor

Replace.
Defective indoor control
PCB

Replace.
(Defective intake air
temperature thermistor
input circuit)
2. Error detection method
Anomalously low temperature
or high temperature (resistance)
is detected by indoor intake air
temperature thermistor (Thi-A)
3 . Condition of error displayed
• When the temperature sensor
detects -50°C or lower for
5 seconds continuously,
the compressor stops.
After 3-minute delay, the
compressor starts again
automatically, but if this
anomaly occurs again within
60 minutes after the initial
detection.
• Or if 48°C or higher is
detected for 5 seconds
continuously.
4. Presumable cause
• Defective intake air
temperature thermistor
connector
• Defective intake air
temperature thermistor
• Faulty indoor control PCB
Note:

Mitsubishi Heavy Industries FDT45KXE6 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDT45KXE6
Category	Air Conditioner
Language	English