Daikin R42NUY2S - Page 249

Si20-701_B Troubleshooting by Remote Controller
242
Troubleshooting
Refer to P.470.
YES
Is it
connected correctly?
NO
YES
Connect
correctly.
Check if the connector for
the pressure sensor is
correctly connected to the
outdoor unit PCB.
Measure the voltage
between the pins # (1)
and (3) of the above
connector.
CHECK 7
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
Is the
relation between
the pressure and the
voltage normal?
NO
Replace the
outdoor unit
PCB.
Replace the
pressure sensor.
CHECK 7