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9.2.9 P2(temperature protection of compressor top) diagnosis and solution.
9.2.10 P4(inverter compressor drive error) diagnosis and solution.
Is the connection of
compressor good? Is the
wiring sequence right?
The
voltage
range
proper?
Replace the outdoor E-box.
If the problem comes to
again,
check
coil
resistance of inverter
compressor,
is
it
0.668ohm?
YES
Replace
inverter
compressor
Reconnect and retry
NO
NO
Replace
the
outdoor
PCB.
YES
NO
YES
Does compressor
operate?
Is the connection
good?
Is refrigerant circulation
volume normal?
NO
NO
Charge refrigerant
Is
abnormality
the
same
after
gas
charging?
Check refrigerant system
(such
as
clogging
of
capillary, etc)
Reconnect and retest.
NO
YES
Is
protector
normal?
Replace the protector.
NO
YES
Check the outdoor
main PCB. Is there
some problem?
