Operating Instructions and Installation
4-8
Samsung Electronics
Outdoor Unit(cont.)
SUB PCB
7-Segment
Diplay
Content
Measures
Product operation status in
case of error
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
:
OFF
:
ON
◎
:
BLINK
