Sinclair AST-24BI Service Manual page 50

9
normally. Strange noise or leakage occurs.
(dirt block, ice block, oil block, Y-valve no
46
Troubleshooting
for F0 malfunction
Heat exchangers are
too dirty or the air inlet/outlet
is blocked.
No
Compressor doesn't work
Casing is too hot.
No
System is blocked inside
fully open).
No
The refrigerant is leaking
No
Replace a main
board with the
same model.
End
Clean the heat exchangers
Yes
blockage of air inlet/outlet.
No
Make compressor run normally.
Yes
No
Yes Remove blockage in the system
No
Check the leaking status of refrigerant
Yes
and charge refrigerant
No
and remove
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Malfunction is
eliminated.
Installation and Maintenance
Service Manual
Yes
Yes
Yes
Yes