Daikin R30NUY1 - Page 230

Troubleshooting by Remote Controller Si20-701_B
223
Troubleshooting
Refer to P.460.
NO
YES
Are
the above
thermistor installed
on pipes
correctly?
Is the
characteristic of
the above thermistor
normal?
CHECK 3
NO
YES
Install the
thermistor
correctly.
Remove the outdoor air
thermistor, heat
exchanger deicer
thermistor and the liquid
pipe thermistor from the
outdoor unit PCB and
measure resistance with
a tester.
Replace the
thermistor.
Rectify the
refrigerant
overcharge.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Check the mounting
condition of the outdoor
air thermistor, heat
exchanger deicer
thermistor and liquid
pipe thermistor in the
piping.
CHECK 3