Daikin R48NUY2S - Page 438

Troubleshooting by Remote Controller Si20-701_B
431
Troubleshooting
Note:
∗1. Only for pair/twin/triple/double twin
YES
NO
YES
NO
Is the
remote controller
connected to more
than 1 indoor
unit?
Connect the
remote controller
correctly.
NO
YES
Is the
setting of
Pair/Twin/Triple set
correctly?
Set correctly.
YES
NO
Are the
micro-computer
normal monitors
(HAP) of all indoor
unit PCB
blinking?
Connect
correctly.
Is the
indoor-indoor (∗1)
and indoor-outdoor
jumper correctly
connected?
NO
YES
YES
Connect
correctly.
Is the
power supply
PCB correctly
connected?
NO
Replace the
transformer.
Wiring could be
incorrect;
recheck.
Is
there 220-
240 VAC between
No.1 and No.3 of X2M
(indoor Unit)?
Caution
Be sure to turn off the power switch before
connecting or disconnecting connectors, or parts
may be damaged.
A