Mitsubishi Heavy Industries SRK20ZJX-S Service Manual page 111

Error code
Error code
Remote controller:
Remote controller: E51 E51
1. Applicable model
All models
2. Error detection method
Power transistor primary current
3.Condition of Error displayed
If the power transistor primary
current exceeds the setting value
for 3 seconds, the compressor
stops.
4. Presumable cause
• Faulty outdoor main PCB
• Dust on outdoor main PCB
• Blown F2 fuse
Note:
LED Green Red
LED Green Red
Indoor Keeps flashing Stays OFF
Keeps flashing Stays Off
Indoor
– 1 time flash
Outdoor
5. Troubleshooting
Diagnosis
Check soldered
surfaces on the outdoor main PCB for
foreign matter like dust,
fouling,etc.
YES
Isn 't F2 fuse
(250V, 20A)blown?
110
-
Content
Content
Power transistor anomaly
Power transistor error
NO
NO
-
'10 • SCM-SM-094
Countermeasure
Remove foreign matter
like dust, fouling, etc.
Replace fuse.
Defective outdoor main
PCB Replace.