Mitsubishi Heavy Industries FDT28KXE6A Service Manual page 98

Error code
E58
Remote controller:
E58
7-segment display:
1. Applicable model
Outdoor unit
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.
LED Green Red
Keeps flashing Stays Off
Indoor
Keeps flashing 1 time flash
Outdoor
5. Troubleshooting
Diagnosis
Save data for 30 minutes before stopping in Mente PC
Check the data for 30 minutes before stopping
within one hour after power
replacement record of
Compressor could be locked
→Replace the compressor
96
–
Content
Anomalous compressor
by loss of synchronism
Is this
the first startup
YES
is supplied?
NO
Is there any
YES
inverter
PCB ?
NO
–
Countermeasure
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.