Daikin RQYQ140-180PY1 Service Manual page 157

SiBE341001
Troubleshooting
Troubleshooting
Continued from the previous page.
(Start failure due to aged operation.)
Refrigerant
is melting in refrigerant
oil. (The unit is out of
power supply for more
than 6 hours.)
YES
Check if the
insulation resistance
of the compressor is
100k Ω or over.
YES
Broken wire inside
the compressor
NO
∗
Check 4
Check if the
power transistor
is normal.
YES
∗
Check 4
: Referring to the information on P.192.
NO
NO
YES
NO
Troubleshooting by Remote Controller
Cancel the melting state of
refrigerant.
Replace the inverter compressor.
Replace the inverter compressor.
Replace the compressor inverter
PCB (A3P).
Recheck the compressor/
refrigerant circuit.
148