- 109 -
※
1
normal
※2
if voltage among
A, B, C on wired
controller is AC
14 V
no
yes
no
no
yes
yes
yes
no
no
yes
no
yes
no
yes
if vo lt age b etw ee n A
an d B on i nd oo r
te rmina l bl ock is AC
14V
if vo lt age betwee n L
an d N o n indo or
terminal block is AC
22 0V
check indo or
power cable
if indoor fuse is normal
ch eck th e abn ormal rea son
wired controller PCB
abn ormal
wi ring be twee n in doors
an d wi red con tro ller is wro ng
if LE D (g re en , r ed )
on indoor P CB is lig ht
if CN23 on mast er
unit is connected
connect CN23
1. indoor transformer abnormal
2. wiring of indoor PCB is
d am ag ed or th e port is not
inserted well
1. indoor transformer abnormal
2. indoor P CB ab no rmal
h eat in g mo de in p rio rity,
the non-prior mode(cooling)
and the dip switch setting
mode are different
indoo r groups f au lt y
1. indoor PCB abnormal
2 . wire d cont ro lle r ab no rm al
Part 3
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