Malfunction Of Suction Pipe Pressure Sensor - Daikin SkyAir Super Inverter 70 D Series Service Manual

SiE25-110

6.25 Malfunction of Suction Pipe Pressure Sensor

JC
Remote
Controller
Display
Outdoor Unit LED
A
Display
Applicable
RZP71 ~ 140D
Models
Method of
Malfunction
Detection
Malfunction
Decision
Conditions
Supposed
Causes
Troubleshooting
Troubleshooting
5 1 4 2 4 3 3 4
Faulty low pressure sensor
Connection of low pressure sensor with wrong connection
Faulty outdoor unit PC board
Incorrect connection of connector
Be sure to turn off power switch before connect or disconnect connector,
Caution
or parts damage may be occurred.
Is low
pressure sensor
connector connected
to outdoor unit
PC board?
YES
Measure voltage (VL)
between pins 2 and 3
of the above connector.
Check No. 13
Is
the relationship
between low pressure
and VL normal?
NO
0
See Check No. 13 for "Voltage measuring procedure (sensor pressure and voltage characteristics).
Troubleshooting by Remote Controller Display / LED Display
3
NO
Connect the low pressure
sensor, and turn on again.
YES
Replace the outdoor unit
PC board (A1P).
Replace the low pressure
sensor.
(S2591)
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