-
137
-
'11 • KX-T-166
Error code
Remote controller:
7-segment display:
LED
Green
Red
Indoor
Outdoor
Content
E48
E48-1, 2 *1
Outdoor DC fan motor anomaly
Keeps flashing Stays Off
Keeps flashing
*1
1.Applicable model
5.Troubleshooting
Outdoor unit
Diagnosis
Countermeasure
Is 15V
of power for control PCB
detected? Is the outdoor fan motor
OK? (Refer the checking method of
15V
in page 90)
Does the
fan rotate smoothly when turned
by hand?
NO
NO
NO
NO
YES
YES
YES
YES
Is E48
restored at 10 seconds after
compressor starting?
Interchange the connectors of fan motor
harnesses at the connectors on outdoor
control PCB side
Is the
fan motor failed to start up
switched?
Start operation again
Turn the power supply OFF
Reset power supply and restart
Save data for 30 minutes before stopping in Mente PC
Check and save the data of
operating conditions
Replace fan motor
Replace inverter PCB
or fan motor
Check it as much as
possible under the
operating conditions for
30 minutes before error
occurred
Wait and see.
Continue to obain data, if
possible
(Keep connecting the
Mente PC)
Replace fan motor
Replace outdoor control
PCB
2.Error detection method
• If 400min
-1
or lower of the
fan rotation command and the
state of overcurent are detected
for 10 times continueously
• If 100min
-1
of the actual fan
rotation speed is detected for
30 seconds
(Fan motor is locked)
3. Condition of error displayed
Same as above.
4.Presumable cause
• Breakage of harness
or loose conection of
connector
• Outdoor fan motor anomaly
• Inverter PCB anomaly
• Outdoor control PCB anomaly
Note:
If the error does not recur, connect the Mente PC and continue to collect data.
*1 E48-1: 1 time flash (FMO1), E48-2 : 2 time flash (FMO
Inspect also the fan motor 2 even if it is E48-1.
Inspect also the fan motor 1 even if it is E48-2.
(
)