Mitsubishi KXZ Series Technical Manual page 236

Remote
7-segment
control
display
error code
E48 E48
E49 E49
E53 E53
E54 E54
E56 E56
E58 E58
E59 E59
E63 E63
2) Option control in-use
SL1N-E
Indoor unit
SL2NA-E
control PCB
SL4-AE/BE
Error Red Red
code LED LED
Keeps Stays
E75
flashing OFF
3) Operation code
7-segment
display
[oP7] Model setting error due to DIP switch
Extremely low outside temperature operation
[oP8]
stopped when outdoor temperature <-22°C
Name of inspection
Outdoor DC fan motor anomaly
Low pressure error
Suction pipe temperature sensor anomaly (Tho-S)
High pressure sensor anomaly (PSH)/Low pressure sensor
anomaly (PSL)
Power transitor temperature sensor anomaly (Tho-P1)
Anomalous compressor by loss of synchronism
Compressor startup failure
Emergency stop
Outdoor unit
control PCB Location of
Green Red Green
LED LED LED
SL1N-E
Keeps Stays Keep
SL2NA-E
flashing OFF flashing
SL4-AE/BE
Reason for display
-
Description of trouble
trouble
・Communication enor (Deflective comm-
unication circuit on the main unit of
SL1N-E, SL2NA-E or SL4-AE/BE)
Unit status
Normal operation impossible Check the settings of SW3-2 and
Normal operation impossible
219
-
'20 • KX-T-373
Classification Page
DC fan motor error 262
System error 263
Sensor wire breakage 264
Sensor wire breakage 265
Sensor wire breakage 266
System error 267
System error 268
Site setting error 269
Repair
method
Replacement
How to deal
SW4-1 to 4-4. See page 215.
Use this machine in an
environment where the outdoor
temperature is> -20°C.