Mitsubishi Heavy Industries 112KXE6, Service Manual, Page: 94 / 209

Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
–
91
–
E58
E58-1
Anomalous compressor
by loss of synchronism
Keeps flashing Stays Off
Keeps flashing 1 time flash
1. Applicable model
5. Troubleshooting
Outdoor unit
Diagnosis Countermeasure
Is there any
replacement record of
inverter
PCB ?
Is this
the first startup
within one hour after power
is supplied?
Save data for 30 minutes before stopping in Mente PC
Check the data for 30 minutes before stopping
Compressor could be locked
→Replace the compressor
NO
YES
NO
YES
Check and save the data of
operating condition
Refrigerant might be
migrated in the refrigerant
oil in the compressor.
Wait for about one hour
under the condition of
power ON and start again.
( Turn the on crankcase
heater ON and evaporate
the liquid refrigerant
migrated in the compressor.
The model setting could be
wrong.
Check the dip switch
for model setting on the
outdoor control PCB.
2. Error detection method
E58 is displayed on 7-segment
LED
3. Condition of error displayed
This anomaly is established 4
times within 15 minutes.
4. Presumable cause
• Insufficient time elapsed after
the power supplied, before
compressor startup.
(Startup the compressor
wihtout crankcase heater ON)
• Compressor anomaly
Note: If the error does not recur, connect the Mente PC and continue to collect data.