Daikin RXYQ-TA Series Service Manual page 229

SiUS341615E
∗1. Make a comparison between voltage measured by the pressure sensor and that read by the
Note:
CHECK 1
CHECK 12
Service Diagnosis
A
Are the
characteristics of
the high pressure
sensor normal?
(∗1)
YES
Service Checker
CHECK 12
Compare the high pressure value checked with the Service Checker and the
actual value measured by pressure sensor (∗1).
Check
if the high
pressure value and
the actual value
measured by
pressure sensor
are the
same.
YES
-The high pressure sensor is normal, and pressure detection with the
outdoor unit main PCB is also normal.
-The high pressure has really become high.
CHECK 1 : Eliminate factors that cause the high pressure to rise.
pressure gauge.
(The pressure sensor makes measurement of voltage at its connector block to convert it to
pressure. )
CHECK 12
Refer to page 291.
Refer to page 302.
NO
NO
Troubleshooting by Error Code
Replace the high pressure sensor.
Replace the outdoor unit
main PCB (A1P).
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