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