Samsung AM072FXVAFH series, Руководство по обслуживанию

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Trou b l e shootin g
S a msun g El e c troni c s 4-79
4-4-34-phase Input Wiring error
Out d oor unit d ispl a y
In d oorunit d ispl a y
Ju d g m e nt M e tho d
. Wh e n turn on th e pow e r a n d c h e c k th e st a tus o f th e pow e r f rom th e inv e rt e r.
I f th e ph a s e d o e s not c onn e c t th e pow e r(no ph a s e ) : E4 2 5 or E466 (E 3 66) is d ispl a y ed
(Air c on d ition e r to m a int a in th e norm a l st a t e .)
How e v e r) N-ph a s e must b e prop e rly c onn e c t ed .
C a us e o f pro b l e m
∙ Ch e c k th e input wirin g
∙ EMI Fus e short
Du c t, C a ss e tt e (1/ 2 W a y),Consol e , C e lin g C a ss e tt e (4/Mini4 W a y) W a ll-mount ed (N e oFort e )
Op e r a tion D e f rost Tim e r F a n Filt e r/MPI Op e r a tion D e f rost Tim e r Filt e r Op e r a tion Tim e r Tur b o
× × ◑ ◑ ◑ × ◑ ◑ ◑ ● ◑ ◑
※ ● : ON ◑ : Fl a sh ×: OFF
1. How to
c h e c k
R e pl a c e th e MAIN PCB.
Conn e c tion a n d th e n r e st a rt it
Pow e r BOX T e rmin a l : Ch e c k th e ph a s e -to-ph a s e
c onn e c tion 3 80V o f th e R, S , T a n d th e n r e st a rt.
(N-ph a s e must b e prop e rly c onn e c t ed .)
No
No
Y e s
Y e s
Di d th e R ea c tor
Conn e c tion T e rmin a l is c onn e c t ed
prop e rly?
Di d th e M a in
T e rmin a l Blo c k a n d Pow e r R, S , T, N is
c onn e c t ed prop e rly?
Low volt a g e e rror d urin g this initi a l c h a r g e :
R e pl a c e Fus e , i f th e r e c ti f i e r d io de o f th e
inv e rt e r PCB is norm a l.
No
No
Di d th e EMI PCB Fus e is short?
Conn e c tion a n d th e n r e st a rt it
Y e s
Y e s
Is EMI PCB CN 2 1
c onn e c tor a n d Inv e rt e r PCB a cc ur a t e ly
c onn e c t ed ?
Pow e r O ff