Cc" Indoor Unit: Malfunction Of Humidity Sensor System - Daikin CMSQ200A7W1B Service Manual

Troubleshooting by Indication on the Remote Controller
CC
3.11 " " Indoor Unit: Malfunction of Humidity Sensor System
CC
Remote
Controller
Display
Applicable FMCQ
Models
Method of Even if a malfunction occurs, operation still continues.
Malfunction is detected according to the moisture (output voltage) detected by the moisture
Malfunction
sensor.
Detection
Malfunction When the moisture sensor is disconnected or short-circuited
Decision
Conditions
Supposed
Causes
Troubleshooting
150
Faulty sensor
Disconnection
Be sure to turn off power switch before connect or disconnect connector,
Caution or parts damage may be occurred.
Remove the humidity sensor
from the indoor PC board
and insert it again.
Does it
YES
function normally?
NO
Delete the malfunction code
record from the remote
controller. (*1)
CC
Is " "
displayed on
YES
the remote
controller? (*2)
NO
*1: To delete the record, the ON/OFF button of the remote controller must be pushed and
held for 5 seconds in the check mode.
*2: To display the code, the Inspection/Test Operation button of the remote controller must be
pushed and held in the normal mode.
*3: If "CC" is displayed even after replacing the humidity sensor PC board ASS'Y (A2P) and
taking the steps *1 and 2, replace the indoor PC board ASS'Y (A1P).
SiBE28-805
It is normal.
(Poor connector contact)
Replace the humidity sensor
PC board ASS'Y (A2P).
*3
It is believed that external factors
(noise or else) other than failure
caused the malfunction.
Troubleshooting