Mitsubishi Heavy Industries SCM71ZS-W User Manual

-
150
-
'19 • SCM-SM-276
Error code
Remote control:
LED Green Red
Indoor
Outdoor
Content
Error code
Remote controller: E51
LED Green Red
Indoor
Content
Power transistor error
(Models SRC50, 60)
Keeps flashing Stays Off
1. Applicable model
5. Troubleshooting
All models
Diagnosis Countermeasure
2. Error detection method
3.
Condition of error displayed
4. Presumable cause
Note:
If the power transistor primary
current exceeds the setting value
for 3 seconds, the compressor
stops.
Power transistor primary current
• Outdoor unit main PCB
anomaly
• Dust on outdoor unit main PCB
• Blown F2 fuse
Check soldered
surfaces on the outdoor unit main PCB
for
foreign matter like dust,
fouling,etc.
Is F8 fuse
(250V, 20A)blown?
Remove foreign matter
like dust, fouling, etc.
Replace fuse.
Defective outdoor unit
main PCB➞Replace.
YES
NO
NO
YES
E51
Power transistor anomaly
Keeps ashing
Stays OFF
– 1
-
time ash

Mitsubishi Heavy Industries SCM71ZS-W Specifications

General

Brand	Mitsubishi Heavy Industries
Model	SCM71ZS-W
Category	Air Conditioner
Language	English