Daikin RXSQ24TAVJU Service Manual page 251

SiUS331708EA
Troubleshooting
CHECK 15
Service Diagnosis
A
Check the
transmission
wiring between
centralized controller for
any broken wire.
CHECK 15
Normal
Check
the
transmission wiring
with the master
centralized controller for
any broken wire.
CHECK 15
Normal
Has the
master centralized
controller setting connector
been connected?
YES
Disconnect the transmission
wiring of the master centralized
controller, and then check the
voltage between the
transmission terminals (F1 and
F2) of the master centralized
controller 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
Refer to page 272.
Abnormal
Abnormal
NO
NO
Troubleshooting by Error Code
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.
238