Mitsubishi SCM45ZS-S User Manual

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263
-
'16 • SCM-T-199
E38
Outdoor air temperature
sensor anomaly
Keeps ashing Stays OFF
Outdoor
–
8
-
time ash
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
Correct connector.
Defective outdoor air
temperature sensor
→
Replace.
Defective outdoor main
PCB
→
Replace.
(Defective outdoor air
temperature sensor input
circuit)
2. Error detection method
Detection of anomalously low
temperature (resistance) on
outdoor air temperature sensor
3 . Condition of error displayed
• When the temperature sensor
detects -55 °C or lower for 5
seconds continuously within
2 minutes to 2 minutes 20
seconds after the compressor
ON, the compressor stops.
After 3-minutes delay, the
compressor starts again
automatically, but if this
anomalous temperature is
detected 3 times within 40
minutes.
• When -55 °C or lower is
detected for within 20 second
after power ON.
4. Presumable cause
• Defective outdoor main PCB
• Broken sensor harness or
temperature sensing section
(Check molding.)
• Disconnected wire connection
(connector)
Note:
Is
the suction pipe
temperature sensor connector
connected properly?
YES
Is the
characteristics of the
suction pipe temperature
sensor
OK?
NO
For the characteristics of suction pipe
temperature sensor, see the following graph.
YES
NO
Temperature-resistance characteristics
15
10
5
010304020 50
Temperature thermistor resistance (kΩ)
Temperature (°C)
5kΩ at 25°C
(Broken wire)
(Short circuit)
Error code
Remote control:
LED Green Red
Indoor
Content

Mitsubishi SCM45ZS-S Specifications

General

Brand	Mitsubishi
Model	SCM45ZS-S
Category	Air Conditioner
Language	English