Daikin RXYQ-TA Series Service Manual page 238

Troubleshooting by Error Code
CHECK 16
CHECK 17
225
A
CHECK 16
Check for the connector
(power supply cable) of the
fan motor.
Resistance
between U, V, W
phases of the fan motor
power supply cable has lost
balance or short circuit is
caused between U, V,
W phases.
NO
CHECK 17
Check for the connector
(signal cable) of the fan
motor.
Signal
cable has
caused short circuit
between Vcc and Gnd,
and between UVW
and Gnd.
NO
Turn ON the power supply to check for the following LED lamps.
(1)HAP lamp on the inverter PCB ( 2)
(2)HAP lamp on the fan PCB ( 1)
The
HAP lamp on
inverter PCB ( 2)
blinks, but that on fan
PCB ( 1) does
not blink.
NO
Refer to page 304.
Refer to page 304.
U V W
(Red) (White) (Black)
YES
Gnd Vcc W V U
(Gray) (Pink) (Orange) (Blue) (Yellow)
YES
YES
SiUS341615E
Replace the relevant fan motor.
Replace the relevant fan motor.
1
RXYQ72TA: A4P
RXYQ96/120T: A4P, A5P
RXYQ144/168TA: A4P, A7P
2
RXYQ72-120TA: A3P
RXYQ144/168TA: A3P, A6P
Replace the fan PCB. ( 1)
Replace the fan motor.
Service Diagnosis