Blower Motor Communication Error - Daikin VRV RXYQ72-384XAYCA Service Manual

Troubleshooting by Error Code

3.21 Blower Motor Communication Error

Applicable
FXTQ-TA, FXTQ-TB
Models
C1-07
Error Code
Outline
Error is issued if transmission abnormalities occur between indoor unit and fan motor.
Error Decision
If the response message from the fan motor is an abnormal message, and determined as such by
Conditions the indoor unit, the indoor unit will execute a retry.
If everything fails for 5 seconds, it is deemed to be a transmission abnormality.
Error Reset
If the indoor unit receives even a single normal response message from the fan motor, the error will
Conditions be cleared.
Supposed
 Incorrect or loose wiring
Causes  Power interruption (low voltage)
Corrective
 Check wiring or tighten wiring connections if needed.
Actions
 Verify the input voltage at the motor.
 Replace the indoor unit PCB or motor.
267
SiUS342004EB
Part 6 Service Diagnosis