Daikin VRV III-S RXYMQ36 48PVJU, Service Manual

Page: 202 / 264

SiUS34-907 Troubleshooting by Indication on the Remote Controller
Troubleshooting 193
: Refer to the information on P.217.
Check the
transmission
wiring between centralized
remote controller for any
broken wire.
Abnormal
Correct the wiring.
Normal
Check the
transmission
wiring with the master
unit centralized remote controller
for any broken wire.
Abnormal
Correct the wiring.
Normal
Has the
master unit central
setting connector been
connected?
NO
Correct the connection of the
connector.
YES
A
Disconnect the transmission wiring of
the master unit centralized remote
controller, and then check the voltage
between the transmission terminals
(F1 and F2) of the master unit
transmission equipment using a
multiple meter.
Is the voltage
between the terminals
F1 (+) and F2 (-) in the range of
15.2 to 17.6 VDC?
Replace the centralized remote
controller.
NO
Centralized remote controller:
Normal
It is supposed that the
malfunction results from
external factors (e.g. noises)
from other equipment.
YES
CHECK 8
CHECK 8
CHECK 8