koppel KV36ODU-ARF21 - Page 55

Operation Limits
8. P0 malfunction
Outdoor Units 53
Judge 2: Whether
refrigerant circulation volume is
normal?
Whether
abnormality is the same after gas charging?
Check refrigerant system (such as clogging of capillary etc.)
P0 display
Top temperature protection of compressor
Judge 1: Whether
compressor operates?
Yes
No
Whether
the
connection is good?
Method:
Charge refrigerant
Yes
Whether
protector is
normal?
No
No
Reconnect and
retest.
No
Replace the protector.
No
Check the outdoor
main PCB. Is there
some problem?
Yes
Replace the protector.
Yes