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
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