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Self diagnosis function
■ We are constantly trying to do better service to our customers by installing such judges that show abnormality of each function as follows:
Outdoor heat exchanger fluid pipe
sensor error
Outdoor temperature sensor error • Broken outdoor sensor wire, poor connector connection
Description of trouble
Room temperature sensor error
Cause
• Broken heat exchanger sensor wire, poor connector
connection
Indoor fan motor error
Heat exchanger sensor error
2 time flash
6 time flash
TIMER light ON
1 time flash
RUN light
2 time flash
1 time flash
TIMER light
RUN light keeps flashing
• Broken room temperature sensor wire, poor connector connection
• Defective fan motor, poor connector connection
• Broken heat exchanger fluid pipe sensor wire, poor connector
connection
4 time flash Discharge pipe sensor error • Broken discharge pipe sensor wire, poor connector connection.
When to contact your distributor without delay
■ Turn off the power switch immediately and inform your dealer in any of the following situations:
The fuse or switch blows continu-
ously.
The cable becomes extremely hot.
The covering of the cable is cracked.
The TV, radio or other equipment
starts to malfunction.
When faulty movement is observed when the ON/OFF but-
ton is pressed, even after turning off the power switch and
restarting the operation after 3 minutes, the faulty move-
ment does not disappear.
A switch does not activate properly. You hear a strange noise during opera-
tion.
3 minutes go
by, but, why ...
Fuse often blows.
The RUN and TIMER lights on the unit indication section
blink quickly (0.5 sec. ON; 0.5 sec. OFF) and don’t work.
CAUTION
If the power cord becomes damaged, ask your dealer or a qualified engineer to install the
replacement to avoid accidents.
RUN light ON
2 time flash
RUN light 2 time flash
Rotor lock
• Defective compressor
• Open phase on compressor
• Defective outdoor unit boards
• Gas shortage, defective discharge pipe sensor, closed service
valve
• Broken power transistor, broken compressor wire
• Broken discharge pipe sensor wire, poor connector connection
• Compressor blockage
• Compressor locking, open phase on compressor output,
shortcircuit on power transistor, closed service valve
• Defective power supply, Broken signal wire, defective in/outdoor
unit boards
Power transistor error
4 time flash
• Broken power transistor
Current cut
1 time flash
Trouble of outdoor unit
2 time flash
Over current
3 time flash
• Overload operation, overcharge
Over heat of compressor
5 time flash
Error of signal transmission
6 time flash
Outdoor fan motor error
7 time flash
• Defective fan motor, poor connector connection
RKX012A015_En.p65 5/22/06, 4:48 PM20
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