Mitsubishi Heavy Industries SRK20ZJ-S Service Manual

-
92
-
'10 • SCM-SM-094
Error code
Remote controller:
LED Green Red
Indoor
Content
E6
Indoor heat exchanger
temperature thermistor anomaly
Keeps flashing 1 time flash
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 (k)
Temperature (°C)
15
10
5
0 10 30 4020 50
(Broken wire)
(Shot circuit)
5k at 25°C
Correct.
ª
Insert connector
securely.
Defective indoor heat
exchanger temperature
thermistor
ª
Replace.
Defective indoor control
PCB
ª
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:

Mitsubishi Heavy Industries SRK20ZJ-S Specifications

General

Brand	Mitsubishi Heavy Industries
Model	SRK20ZJ-S
Category	Air Conditioner
Language	English