Daikin VRV S RXQ4/5ARV1 - Page 251

SiAF332111E Troubleshooting by Error Code
Part 6 Service Diagnosis 245
Note(s)
Reference
RXMQ6AR
RXMQ8AR
1. RXMQ6AR: F6U
RXMQ8AR: F101U
2. RXMQ6AR: outdoor unit main PCB (A1P)
RXMQ8AR: fan PCB (A4P)
CHECK 16 Refer to page 356.
Replace the fan motor (M1F).
YES
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.
Check for the connector
(power supply cable) of the
fan motor.
CHECK 16
Replace the outdoor main PCB
(A1P).
NO
The HAP
lamp on A1P blinks.
Turn ON the power supply to
check for the HAP lamp on
the outdoor main PCB (A1P)
Replace the fan motor (M1F).
YES
A
NO
Replace the fan motor (M1F).
YES
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.
Check for the connector
(power supply cable) of the
fan motor.
CHECK 16
Replace the fan PCB (A4P).
YES
The LED lamp
on A3P blinks, but that
on A4P does not blink.
Turn ON the power supply to check for the following LED lamps.
(1)
LED lamp on the inverter PCB (A3P)
(2)
LED lamp on the fan PCB (A4P)
Replace the fan motor (M1F).
NO
A
NO