Mitsubishi SCM45ZS-S User Manual

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249
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'16 • SCM-T-199
E6
Indoor heat exchanger
temperature thermistor anomaly
Keeps ashing 1-time ash
Outdoor
–
Stays OFF
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
NO
NO
YES
Is the
connection of indoor heat
exchanger temperature thermistor
connector OK?
Are
characteristics of indoor
heat exchanger temperature
thermistor OK?
YES
Temperature-resistance characteristic
Temperature thermistor resistance (kΩ)
Temperature (°C)
15
10
5
010304020 50
(Broken wire)
(Short circuit)
5kΩ at 25
°C
Correct.
→
Insert connector
securely.
Defective indoor heat
exchanger temperature
thermistor
→
Replace.
Defective indoor control
PCB
→
Replace.
(Defective indoor unit heat
exchanger temperature
thermistor input circuit)
2. Error detection method
Anomalously low temperature
or high temperature (resistance)
is detected on 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
error 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
• Indoor heat exchanger
temperature thermistor
anomaly
• Faulty indoor control PCB
Note:
Error code
Remote control:
LED Green Red
Indoor
Content

Mitsubishi SCM45ZS-S Specifications

General

Brand	Mitsubishi
Model	SCM45ZS-S
Category	Air Conditioner
Language	English