Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 122

SiBE26-701
Troubleshooting
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Is the
power supply for the
NO
indoor fan correctly
connected?
YES
Is the fan
interlock PC NO
board correctly
connected?
YES
Restart operation
YES
Is the operation normal?
NO
Is 200V
supplied to the
YES
connector of the fan
interlock PC
board?
NO
Is the
voltage of X31A
YES
for the main body PC
board DC5V?
NO
Diagnosis by Remote Controller
Connect correctly.
Connect correctly.
It is supposed that the
system caused
malfunction stop due
to overload/
overcurrent/ lock of
the indoor unit fan
motor.
Check the indoor unit
fan motor.
Replace the fan
interlock PC board
Replace the indoor
unit PC board
111