Alignment and Adjustments
MAIN
7-Segment
Inverter LED
Content Measures
Product operation status in
case of error
Yellow Green Red
Number of
Times
Outdoor unit
compressor/
outdoor unit
fan
◎ ● ○
Comp Vlimit error
• Check the connection status of compressor
• Check the resistance between different phases
in compressor
9 Times Operation-off
○ ● ◎
DC-Link voltage under/
over error
• Check the connection of input power
-
Restart(after
3min.)
● ○ ●
Comp rotation error
• Check the connection status of the compressor
• Check the resistance between different phases
in compressor
3 Times Operation-off
◎ ◎ ●
Current sensor error
• Check the PCB operates normally
1 Time Operation-off
● ◎ ◎
DC-Link valtage sensor error
• Check the connection of input power
1 Time Operation-off
● ○ ◎
OTP error
• Check the PCB operates normally
1 Time Operation-off
● ● ◎
AC Line Zero Cross Signal
out
• Check the connection of input power
1 Time Operation-off
○ ● ○
Comp Lock error
• Check the connection status of the compressor
• Check the resistance between different phases
in compressor
3 Times Operation-off
● ○ ○
Fan error(two fan outdoor)
• Check the input power connection status
• Check the connection status between the
motor and PCB in outdoor unit
• Check the fuse of indoor/outdoor units
1 Time Operation-off
● ● ○
GAS Leak error(Dual/Single)
• Check refrigerant is filled
• Check the indoor EVA sensor
3 Times Operation-off
◎ ○ ○
Capacity miss match
• Check the indoor unit's option code
• Check the capacity of indoor unit's and
outdoor unit's
1 Time Operation-off
-
○ ◎ ◎
Test Operation at Cooling
Mode
- - -
-
◎ ◎ ◎
Test Operation at Heating
Mode
- - -
Outdoor Error Display and Check Method(cont.)