Daikin R71FUV1 Service Manual page 283

Si20-701_B
Remote Controller Display
L4
Applicable Models
RZQ-C7
Method of Error Detection
Radiation fin temperature is detected by the thermistor of
the radiation fin.
Supposed Causes
Activation of fin thermal switch (93°C or more)
Defective outdoor unit inverter PCB
Defective radiation fin thermistor
Troubleshooting
Caution
The
temperature
of the radiation fin
increased up to
93˚C.
NO
Turn the power off to
measure the resistance
value of the radiator fin
thermistor.
Is the
resistance
value of the thermistor
normal?
YES
Plug and unplug the
connector for the radiation
fin thermistor to fix
correctly.
A
276
Troubleshooting by Remote Controller
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
YES
NO
Defective
radiation of the
power unit
· The air-intake is
closed.
· Dirt of the
radiation fin
· The outdoor air
temperature is
high.
Replace the
thermistor.