Daikin SkyAir RZQ200 · 250C7Y1B Service Manual page 157

Diagnosis by Remote Controller
Troubleshooting
146
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Is the stop valve
open?
YES
Is the
lead wire of the compressor
normal?
Are the wiring
and wiring connection
to the compressor
normal?
YES
Power
OFF
The insulation
resistance is low
(i.e., not more than
100 kΩ.)
NO
The
compressor coil is
shorted or
broken.
NO
Check 7
Is contiuity of the power
transistor normal?
NO
Restart
the compressor,
and then check whether or not
the mulfunction
recurs.
YES
Power Replace the PC board (A3P).
OFF
Restart
the compressor,
and then check whether
or not the mulfunction
recurs.
YES
NO
NO
NO
YES
YES
YES
NO
NO
SiBE26-701
Open the stop valve
Replace the lead wire
of the compressor.
Correct the wiring and
wiring connection.
Replace the inverter
compressor (M1C).
Replace the inverter
compressor (M1C).
Replace the outdoor
PC board (A3P).
Continues operation
There may have been
momentary power
failure and others
Continue operation
Replace the inverter
Troubleshooting