Samsung ASV18PULNXEA Service Manual page 85

Heatsink sensor error/Heatsink over heat
Indoor display ⊙
Outdoor display ⊙
⊙
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 conrol-box normal?
2. Troubleshooting procedure
Restart after power off.
Are there screws in PBA-heatsink?
(4 screws)
YES
Is the fan operation normal?
YES
Exchange the Outdoor PBA
12-20
○ ⊙ Outdoor error
⊙ ● Heatsink sensor error
● ⊙ Heatsink over heat error
NO
NO
Fastening the screw
Check the fan connection
Change the Fan motor