Blower Motor Not Running - Daikin VRV EMERION RXYQ-AATJA Service Manual

Troubleshooting by Error Code

3.10 Blower Motor Not Running

Applicable
FXTQ-TA
Models
A6
Error Code
Outline Error is issued if the indoor unit determines that the indoor fan motor cannot rotate.
Error Decision
 Determining successive abnormalities
Conditions
 Determining long-term abnormalities
Error Reset
Reset by remote controller
Conditions
Supposed
 Fan or motor obstruction
Causes  Power interruption (low voltage)
 Incorrect or loose wiring
Corrective
 Check for obstruction on the fan or motor.
Actions  Verify the input voltage at the motor.
 Check wiring or tighten wiring connections if needed.
 Replace the indoor unit control PCB or motor.
Reference
CHECK 19 Refer to page 392.
261
Checks the rotation speed at 5-second intervals using the feedback of the fan motor.
If that figure falls below 50 rpm 5 times successively, it is deemed abnormal operation.
If, during operation, the rotation command is stopped, the 5-second interval check is halted and
the counted number will be cleared.
Checks the rotation speed at 5-second intervals using the feedback of the fan motor.
Performs rotation sampling 720 times (takes approximately one hour), and if the rotation speed
falls below 50 rpm over 100 times, it is deemed abnormal operation.
When the sampling reaches 720 times, the counted number will be cleared and the 720 times
sampling restarts.
If, during this, the rotation command is stopped, the 5-second interval check is halted, but the
counted number will be kept.
When the rotation command is restarted, the checks will resume.
SiUS342303E
Part 6 Service Diagnosis