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Error code
E48
Remote control:
E48-1, 2 *1
7-segment display:
*1 E48-1: 1-time flash (FMo1), E48-2 : 2-time flash (FMo2) *2 E48-1: 1-time flash, E48-2: 2-time flash
1. Applicable model
Outdoor unit
2. Error detection method
(1) Fan rotation speed of 100
min
or lower is detected for
-1
30 seconds.
3. Condition of error displayed
When the error detection
method (1) occurred 5 times in
60 minutes.
4. Presumable cause
• Broken or disconnected wire
• Faulty fan motor
• Defective control PCB
Note:
※3 Measurement position Connector of fan motor power cable
※4 Refer to resistance values in separate table. (See next page.)
※5 Measurement position Between 2-3 pins of IC3 on control PCB or between 1-6 pins of CNFAN connector on control PCB
When it does not reproduce, connect the maintenance PC and continue to acquire data.
LED
Green
Red
Keeps flashing Stays OFF
Indoor
Keeps flashing
*2
Outdoor
5. Troubleshooting
( Check also the fan motor 2, even if it is E48-1, and also the fan motor 1, even if it is E48-2. )
Diagnosis
Save the data 30 minutes before stop in the maintenance PC.
※3
Is DC280V
output detected on the
fan motor?
YES
motor's power source
Does the resistance
value of fan motor power cable indicate the
state of short-circuit?
NO
Does fan rotate
smoothly by hand?
YES
Turn power OFF. Disconnect the fan motor control signal
connector from PCB, and restart operation.
※5
Is DC15V
output detected on control
PCB?
YES
※4
Does the
resistance value of fan motor
signal cable indicate the state
of short-circuit?
NO
Turn power OFF. Connect the fan motor control signal
connector to PCB, and restart operation.
A
See next page.
120
–
Content
Outdoor DC fan motor anomaly(1/2)
NO
Is fan
NO
fuse blown?
Is there
YES
damaged wire cover or
broken wire?
Replace fuse.
NO
YES
NO
NO
YES
–
'17 • KX-SM-261
Countermeasure
YES
Repair wires.
Check DC280V circuit
same as for E45.
Replace fan motor.
Replace fan motor.
Replace control PCB.
Replace fan motor.
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