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Troubleshooting Guide
Self diagnosis Function
Error
Error Indicator
Code
1 time
1time
1
3 sec
2times
2
3 sec
4
5
6
7
8
9
10
1. Error indicator of air conditioner
1) Indoor : Operating LED / Outdoor : LED01M(Red) on the outdoor PCB
2) 2 more errors occur at same time
- Air conditioner Off condition : Display the error code of product off cause
- Air conditioner On condition : Display the prior Error Code
2. Cancellation of Error indicator
1) Error Code 1, 2, 3, 4, 10 : Error indicator canceled when cause of error recovered
2) Error Code 5, 8, 9 : Keep displaying Error indicator by restarting air conditioner,
3) Error Code 6, 7 : Error indicator canceled when power reset (Power Cord Off & On)
54 Room Air Conditioner
1time
1time
1time
3 sec
3 sec
3 sec
2times
2times
2times
3 sec
3 sec
4times
4times
3 sec
3 sec
5times
5times
3 sec
3 sec
6times
6times
3 sec
7times
7times
3 sec
8times
3 sec
9times
9times
3 sec
10times 10times
3 sec
although cause of error recovered
Cause of Error
• Indoor Temp. sensor error
- Sensor open or short
• Outdoor Temp. sensor error
- Sensor open or short
• Heat Sink sensor error
- Sensor open or short
- Heat Sink temp is over 95 ...
• Communication error
• DC Peak error
• Over current error (CT2)
8times
• Indoor fan lock error
(BLDC fan model only)
• Outdoor fan lock error
(BLDC fan model only)
Indoor
Display
Operation
Indoor Outdoor
O
ON
O
O
ON
O
O
ON
O
O
OFF
SHUT
O
O
DOWN
SHUT
O
O
DOWN
OFF
O
O
O
OFF
O
O
ON
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