Presence Sensor Or Floor Sensor Abnormality - Daikin CTXG09QVJUW Service Manual

SiUS121632EA
6.6

Presence Sensor or Floor Sensor Abnormality

CE
Error Code
Method of Error The system detects abnormality by the output signal from the sensor(s).
Detection
Error Decision The sensor is disconnected or shorted while the unit is running.
Conditions
Supposed
Causes
Troubleshooting If the cause of the problem is related to the sensors, the sensors should be checked prior to
changing the indoor unit PCB.
Note: When replacing the defective sensor(s), replace the sensor kit as ASSY.
Service Diagnosis
Disconnection of connector
Breaking of wires
Defective sensor(s)
Defective sensor kit PCB
Be sure to turn off the power switch before connecting or disconnecting
Caution connectors, or parts may be damaged.
Check the connection of
connector X81A on indoor unit
PCB.
Normal?
YES
Check the connection of
connectors on the sensor kit.
Normal?
YES
Turn off the power. Then, turn on
the power to restart the system.
CE
error displayed
again?
YES
NO
NO
NO
Troubleshooting for FFQ Series
Correct the connection.
Connect the connectors
properly.
Normal
Replace the sensor kit.
(R24577)
153