Daikin RXYQ96PYDN Service Manual page 438

SiUS34-801A_b
a
∗3: Voltage measurement point
∗4: Refer to "Pressure Sensor, Pressure / Voltage Characteristics" table on P525.
Troubleshooting
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
The low
pressure sensor is
connected to X31A (blue)
of outdoor unit PC
board (A1P).
YES
The
relationship
between the ∗3
VH and low pressure is
normal (see ∗4) when voltage
is measured between X31A pins
(2) and (3) of outdoor unit
PC board (A1P)
(see ∗3).
NO
Troubleshooting by Indication on the Remote Controller
NO
YES
Connect low pressure sensor
property and restart system.
Replace outdoor unit PC board
(A1P).
Replace the low pressure sensor.
(V2808)
423