The faulty cause:
1、The start-up Moment doesn’t reach
the requirement when the compressor
runs firstly.
2 、 The contacting wire of the
compressor is connected wrongly;
3、The wire connecting the IPM board
to the PCB is loose
4、The component of IPM board is bad.
13, The malfunction code:
FC （outdoor unit drive fault, start compressor failure）
Turn on the unit
Knock the compressor around by crabstick.
Let the rotor become be loose then turn on
it again and check the compressor whether
it is running.
Y
The start-up moment isn’t
enough because of the
first running. This is a
normal
Y
Check the contacting wire of compressor
whether it is right or credible
N
Please contact the wire exactly again
according to Figure if there is a
mistake
The component of IPM board is
bad. Please change it
N
Please connect the IPM board to the PCB
exactly. Whether is running after turning on.
Y
The wire connecting the IPM board to
the PCB is loose. Please change the
wire or PCB board.
N
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