Remote Sensor Abnormality - Daikin VRV-WIII RWEYQ72PTJU Service Manual

SiUS30-1301

3.13 Remote Sensor Abnormality

C9
Error Code
Applicable
FXTQ
Models
Method of Error The error is detected out by temperature detected by remote sensor.
Detection
Error Decision
When the remote sensor becomes disconnected or shorted while the unit is running.
Conditions
 Defective indoor unit thermistor (R1T) for air inlet
Supposed
 Defective indoor unit PCB
Causes
Troubleshooting
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution
connectors, or parts may be damaged.
Is the
optional remote
sensor is installed?
YES
Connector is
connected to X16A of
the indoor unit
PCB.
YES
Resistance
is normal when
measured after
disconnecting the sensor
from the indoor unit
PCB.
CHECK 11
YES
CHECK 11 Refer to P.250.
Troubleshooting by Indication on the Remote Controller
Field
NO
setting 10(20)-2 is set at
C3.
YES
NO
NO
NO
Set at 03.
Replace the indoor unit PCB.
Connect the sensor and turn ON
again.
Replace the sensor (R1T).
Replace the indoor unit PCB.
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