Daikin FHYB45FV1 [134/244] Failure of field setting switch

Daikin FHYC140KVE [134/244] Failure of field setting switch
Si-71A Troubleshooting by Remote Controller Display / LED Display
Troubleshooting 123
6.24 Failure of Field Setting Switch
Remote Controller
Display
8$
8$8$
8$
LED Display
A(H1P) —
ýýý
1(H2P) — 2(H3P) —
Applicable Models
Standard models
Supposed Causes
<common>
Failure of indoor or outdoor unit PC board
Failure of power supply PC board
Indoor-outdoor, indoor-indoor unit transmission wiring
Failure of remote controller wiring
Troubleshooting
Note:
1. Refer “No. of Connected Twin System Indoor Units” on page 24
Is there
220-240 VAC
between No.1 and
No.3 of X2M
(indoor Unit)?
Is the
power supply
PC board correctly
connected?
YES
YES
YES
Is the
indoor-indoor
and indoor-outdoor
jumper correctly
connected?
Is the
indoor-indoor
and indoor-outdoor
jumper correctly
connected?
NO
NO
NO
NO
Is
the outdoor unit
using for Twin
system?
Is
the
remote
controller connected
to more than
one indoor
unit?
NO
YES
Are
the
microcomputer
normal montiors
(LED A) of all indoor
unit PC boards
blinking?
YES
Are
the
transmission
normal montiors
(H2P) of all indoor
unit PC boards
blinking?
NO
Is the
setting of
Pair/Twin/Triple
setted
correctly?
YES
NO
YES
NO
YES
Operating normally?
YES
YES
NO
NO
Turn the power off
once, then back on,
and restart operation.
Connect the remote controller
correctly.
Check setting "No. of Connected Twin
System Indoor Units" of indoor unit.
(Note1)
Set correctly
Connect correctly
Connect correctly
Replace the transformer.
Wiring could be incorrect; recheck.
Connect correctly.
Indoor unit PC board replacement
Operates normally
(SF026)

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