Daikin VRV-WIII RWEYQ72PTJU Service Manual page 191

SiUS30-1301
1. Make a comparison between the voltage of the pressure sensor and that read by the pressure
Note:
2. Make measurement of voltage of the pressure sensor.
3. Connector code
RWEYQ72/84PTJU
RWEYQ72/84PTJU9
RWEYQ72/84PYDN
CHECK 13
Service Diagnosis
A
Service Checker
Connect the service checker to compare the "high pressure" value and the
actual measurement value by pressure sensor (*1) by using the service
checker.
Check
if the "high
pressure" value
and the actual
measurement value by
pressure sensor are
the same.
YES
· The high pressure sensor is normal, and the pressure detected with the
PCB is also normal.
· The high pressure has really become high.
CHECK 1 Remove conditions that caused the high pressure to escalate.
gauge.
(As to the voltage of the pressure sensor, make measurement of voltage at the connector, and
then convert it to pressure according to information on P.251.)
CHECK 13
Model name Connector
CHECK 1 Refer to P.241.
Refer to P.251.
Troubleshooting by Indication on the Remote Controller
NO
X46A
X32A
Replace the condensing unit
main PCB (A1P).
183