Mitsubishi Heavy Industries FDT45KXE6 User Manual

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334
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Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
E6
Indoor heat exchanger
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 indoor heat
ex
changer temperature thermistor
connector OK?
Are the
characteristics of indoor
heat exchanger temperature
thermistor OK?
YES
Temperature-resistance characteristic
Temperature sensor resistance (kΩ)
Temperature (°C)
15
10
5
0 10 30 4
020 50
Note (1) 22.5kΩ at -6
°C
5kΩ at 25
°C
Correct.

Connect
connector.
Defective indoor heat
exchanger temperature
thermistor

Replace.
Defective indoor control
PCB

Replace.
(Defective indoor heat
exchanger temperature
thermistor input circuit)
2. Error detection method
Anomalously low temperature
or high temperature (resistance)
is detected by the indoor heat
exchanger thermistor (Thi-R1,
R2 or R3).
3 . Condition of error displayed
• When the temperature
thermistor detects -50°
C or lower for 5 seconds
continuously, the compressor
stops. After 3-minutes delay,
the compressor starts again
automatically, but if this
anomaly occurs again within
60 minutes after the initial
detection.
• Or if 70°C or higher is
detected for 5 seconds
continuously.
4. Presumable cause
• Defective indoor heat
exchanger thermistor
connector
• Defective indoor heat
exchanger thermistor
• Faulty indoor control PCB
Note:

Mitsubishi Heavy Industries FDT45KXE6 Specifications

General

Brand	Mitsubishi Heavy Industries
Model	FDT45KXE6
Category	Air Conditioner
Language	English