Daikin VRV EMERION RXYQ-AATJA Service Manual page 372

Troubleshooting by Error Code
Reference
CHECK 15 Refer to page 385.
365
A
Check the
transmission
wiring between
centralized controller for
any broken wire.
CHECK 15
OK
Check the
transmission wiring
between main centralized
controller for any
broken wire.
CHECK 15
OK
Has the
main centralized
controller setting connector
been connected?
YES
Disconnect the transmission
wiring of the main centralized
controller, and then check the
voltage between the
transmission terminals (F1 and
F2) of the master unit
transmission equipment using
a multimeter.
Is the
voltage
between the
terminals F1 (+) and F2 (-)
in the range of 15.2
to 17.6 VDC?
YES
NG
NG
NO
NO
SiUS342303E
Correct the wiring.
Correct the wiring.
Correct the connection of the
connector.
Replace the centralized
controller.
Centralized controller: Normal
It is supposed that the error
results from external factors
(e.g. noises) from other
equipment.
Part 6 Service Diagnosis