Indoor Fan Motor Status Abnormality - Daikin RXYQ-TA Series Service Manual

SiUS341615E
3.8

Indoor Fan Motor Status Abnormality

A6-20
Error Code
Applicable
FXTQ-TA
Models
Outline
The indoor unit periodically receives control status information from the fan motor.
Error is issued when the information shows abnormality.
Error Decision If the information shows Power Limit or Temp Limit status, it will be deemed a MOTOR LIMIT
Conditions abnormal operation. (The system can keep operating.)
If the information shows Motor Lost Control or Current Trip status, it will be deemed a MOTOR
TRIP abnormal operation. (The system stops operating.)
Error Reset If the indoor unit stops receiving abnormal information, the error will be cleared.
Conditions
Supposed
Causes
Corrective
Actions
Service Diagnosis
Fan or motor obstruction
Blocked filters
Power interruption (low voltage)
Incorrect wiring
Blockage in the airflow (ductwork) or ductwork undersized
High loading conditions
Check for obstruction on the fan, motor, or ductwork.
Clean filters.
Check filters, grille, duct system, heat exchanger air inlet/outlet for blockages.
Verify the input voltage at the motor.
Check wiring.
Replace motor.
Troubleshooting by Error Code
188