Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 164

SiBE26-701
Power ON
Troubleshooting
A
Is the micro controller
NO
normal monitor (green) of
the A1P blinking?
YES
Check 10 or more seconds after
the power supply is turned ON.
YES
The A3P and A4P
do not blink.
NO
YES
The A4P
does not blink.
NO
YES
The LC malfunction recurs.
NO
Diagnosis by Remote Controller
This is not LC.
Recheck for the
malfunction code.
A3P: Replace the
inverter PCB.
∗If the PCB replaced is
badly damaged, the
compressor is likely to
get faulty. To make
sure, recheck the
compressor.
A4P: Replace the fan
driver PC board.
Replace the control
PC board.
End of measures:
The malfunction may
temporarily result from
on-site causes.
Causes:
Instantaneous power
failure (open phase),
noises, or else.
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