Daikin FTKS50BVMB, Service Manual

Page: 405 / 456

SiEN18-622 Troubleshooting for Outdoor Unit
Troubleshooting 393
Troubleshooting
(V 3 1 8 7)
Caution
YE S
YE S
NO
YE S
YE S
NO
NO
YE S
NO
NO
NO
NO
YE S
NO
NO
YE S
YE S
YE S
NO
YE S
Be su re to t u rn off power s witch b efore connect or di s connect connector,
or p a rt s d a m a ge m a y b e occ u rred.
H as the
indoor or
o u tdoor u nit PC
b o a rd b een repl a ced, or
h as the indoor - o u tdoor
or o u tdoor - o u tdoor
u nit tr a n s mi ss ion
wiring b een
modified?
All
indoor u nit remote
control s of the sa me
refriger a nt s y s tem
di s pl a y"U4."
Re s et the power su pply.
O u tdoor
u nit PC b o a rd
microcomp u ter monitor
(HAP) b link s .
Oper a tion re a dy
l a mp (H2P) i s
b linking.
L a mp doe s
not go off for 12 min u te s
or more.
I s
indoor - o u tdoor
a nd o u tdoor - o u tdoor
u nit tr a n s mi ss ion
wiring norm a l?
I s indoor-
o u tdoor a nd o u tdoor
-o u tdoor u nit tr a n s mi ss ion
wiring norm a l?
The
volt a ge b etween
termin a l s L1 a nd N of the
o u tdoor u nit PC b o a rd
i s 220 ~ 240 V.
The f us e on the
o u tdoor u nit' s PC b o a rd
i s bu rnt.
The
s econd a ry volt a ge of
the tr a n s former i s
ab o u t 22 ~ 24 V.
P us h a nd hold the RE S ET
bu tton on the m as ter o u tdoor
u nit PC Bo a rd for 5 s econd s .
* The u nit will not oper a te for
u p to 12 mint u te s
Repl a ce the indoor u nit
PC b o a rd.
Fix the indoor/o u tdoor u nit
tr a n s mi ss ion wiring.
Su pply 220 ~ 240 V.
Repl a ce the f us e.
Repl a ce the tr a n s former.
Repl a ce o u tdoor u nit PC
b o a rd (A1P).
P us h a nd hold the RE S ET
bu tton on the o u tdoor u nit
PC b o a rd for 5 s econd s .
Fix the indoor/o u tdoor u nit
tr a n s mi ss ion wiring.
Repl a ce the o u tdoor u nit
PC b o a rd (A1P).