Humidity Sensor System Abnormality - Daikin VRV-WIII RWEYQ72PTJU Service Manual

SiUS30-1301

3.15 Humidity Sensor System Abnormality

CC
Error Code
Applicable
FXFQ
Models
Method of Error Even if an error occurs, operation still continues.
Detection Error is detected according to the moisture (output voltage) detected by the moisture sensor.
Error Decision
When the moisture sensor is disconnected or short circuited
Conditions
 Defective sensor
Supposed
 Disconnection
Causes
Troubleshooting
1: To delete the history, the ON/OFF button of the remote controller must be pressed and held for
Note:
2: To display the code, the INSPECTION/TEST Operation button of the remote controller must be
3: If "
Service Diagnosis
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Remove the humidity sensor
from the indoor unit PCB
and insert it again.
Does it
function normally?
NO
Delete the error code history
from the remote controller.
(∗1)
Is "CC"
displayed on the
remote controller?
(∗2)
NO
5 seconds in the check mode.
pressed and held in the normal mode.
CC
" is displayed even after replacing the humidity sensor PCB assy (A2P) and taking the
steps 1 and 2, replace the indoor unit PCB assy (A1P).
Troubleshooting by Indication on the Remote Controller
YES
YES
It is normal.
(Poor connector contact)
Replace the humidity sensor
PCB ASSY (A2P).
(∗3)
It is believed that external factors
(noise or else) other than failure
caused the error.
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