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Only for training and service purposes
Part 4 Trouble Shooting
7. Self-diagnosis Function
■ Error Indicator
• The error indicator assists with self-diagnoisis of the air conditioner and identifies if there is any trouble.
• The error indicator location is near the ON/OFF button by the LED on the evaporator and will signal as shown in
the table below.
• If more than two errors occur simultaneously, primarily the highest severity error code is displayed.
• After error an occurrence, the error is cleared, the error LED is also cleared, simultaneously.
• To operate again on the occurrence of error code, be sure to turn off the power and then turn on.
• The error codes are different for various models
■ 9, 12kBtu/h Model
1 time
1
time
3
sec
2
times
2times
3
sec
4times
4
times
3 sec
5times
5times
3 sec
6
times
6
times
3
sec
7
times
7
times
3
sec
3
sec
3
sec
2
times
3
sec
2
times
3
sec
1
time
3
sec
1
time
3
sec
1
time
3 sec
1
2
4
5
6
7
Error Indicator
Error
Code
Cause of Error
Display
Indoor Outdoor
Indoor
Operation
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
• Indoor Temp. sensor error
- Sensor open or short
•
Heat Sink sensor error
- Sensor open or short
- Heat Sink temp is over 95˚C
(203˚F)
• Communication error
• Outdoor Temp. sensor error
- Sensor open or short
• DC Peak error
• Over current error (CT2)
ON
ON
ON
OFF
SHUT
DOWN
SHUT
DOWN
9times
9
times
3
sec
10times
10
times
3 sec
10
ON
• Outdoor fan lock error
• Discharge pipe thermistor is
short or open.
(BLDC fan model only)
OFF
8times 8times
3
sec
8
• Indoor fan lock error
(BLDC fan model only)
OFF
9
(4 LED Model)