Indoor Fan Motor Status Abnormality - Daikin VRV RXYQ72-384XAYCA Service Manual

SiUS342004EB

3.10 Indoor Fan Motor Status Abnormality

Applicable
FXTQ-TA, FXTQ-TB
Models
A6-20
Error Code
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
 Fan or motor obstruction
Causes  Blocked filters
 Power interruption (low voltage)
 Incorrect wiring
 Blockage in the airflow (ductwork) or ductwork undersized
 High loading conditions
Corrective
 Check for obstruction on the fan, motor, or ductwork.
Actions
 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.
Reference
CHECK 19 Refer to page 379.
Part 6 Service Diagnosis
Troubleshooting by Error Code
244