10-22
Samsung Electronics
10-2-19 Heatsink sensor error/Heatsink over heat
Indoor display
3-LED DISPLAY
7-SEG DISPLAY
DESCRIPTION
LED1
LED2
LED3
◎
{
◎
E474
Heatsink sensor error
E500
Heatsink Over Temperature Error
Outdoor display
◎
◎
O
Heatsink sensor error
◎
O
{
Heatsink Over Temperature Error
O
LED ON
◎
LED BLINKING
{
LED OFF
1. Checklist :
1) Are there screws assembly in PBA-heatsink?
2) Is the gap PBA-heatsink
3) Is the fan operation normal?
4) Is the cover assembly in control-box normal?
2. Troubleshooting procedure
Restart after power off.
Exchange the Outdoor PBA
Are there screws in PBA-heatsink?
(4 screws)
Is the fan operation normal?
NO
NO
Fastening the screw
Check the fan connection
Change the Fan motor
YES
YES
