Si20-701_B
Troubleshooting by Remote Controller
274
Troubleshooting
YES
YES
Radiation fin
temperature of the
compressor inverter
is high.
NO
NO
Turn
ON the power
supply, and then
check whether or not
the error recurs.
Replace the
inverter PCB.
End of measures
• It is supposed
that radiation
fin temperature
has risen due
to onsite
causes.
Conduct the
checks shown
below.
• Radiation fin for
stains
• Airflow for
interference
• Fan propeller
for damage
• Whether or not
outdoor air
temperature is
too high
Defective
radiation fin from
the switch box:
Conduct the
checks shown
below.
• Radiation fin
for stains
• Airflow for
interference
• Fan propeller
for damage
• Whether or not
outdoor air
temperature is
too high
Power
OFF
Power
ON
Remove and insert the
radiation fin thermistor
connector "X111A".
If the
radiation fin
reaches a
temperature
of 93˚C, the
error will
occur.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.