Daikin RXYQ-TA Series Service Manual page 204

Troubleshooting by Error Code
191
A
The relay cable has no
continuity.
NO
When
the airflow
direction flap-cam
mechanism is disconnected
from the swing motor,
operation is normal
when turned ON
again.
YES
∗1: Swing motor connector
Model
FXFQ-T X9A
FXFQ-P X36A
FXZQ-M X28A
FXUQ-P X36A
FXEQ-P X36A
FXHQ-M X6A
FXAQ-P X36A
YES
NO
∗2: Swing motor
M1S, M2S, M3S, M4S
M1S
M1S
M1S, M2S, M3S, M4S
M1S, M2S, M3S, M4S
M1S
M1S
SiUS341615E
Replace the power supply
relay cable.
Replace the defective
swing motor. (∗2)
Take the flap-cam mechanism
apart, reassemble and turn ON
again.
Service Diagnosis