Daikin R42NUY2S - Page 224

Troubleshooting by Remote Controller Si20-701_B
217
Troubleshooting
Refer to P.460.
Discharge
pipe temperature is
115˚C or higher when
the unit stop by
error.
YES
NO
YES
Refrigerant
shortage,
compression
defect, etc.
Defective the
refrigerant
system.
Pull out the discharge
pipe thermistor from the
outdoor unit PCB, and
then make measurement
of resistance using a
multiple meter.
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Are the
characteristics of the
discharge pipe
thermistor normal?
(3.5~400kΩ)
NO
Replace the
discharge pipe
thermistor.
Replace the
outdoor unit
PCB.
CHECK 3
CHECK 3