Samsung AM072FXVAFH series, Service Manual

Page: 149 / 293

Trou b l e shootin g
S a msun g El e c troni c s 4-5 3
4-4-20 C ompressor Discharge or Top 1/2 Temperature sensor error
Out d oor unit d ispl a y
(Compr e ssor 1 Dis c h a r g e ) (Compr e ssor 2 Dis c h a r g e )
(Compr e ssor 1 Top) (Compr e ssor 2 Top)
In d oorunit d ispl a y
Ju d g m e nt M e tho d ∙ R e f e r to th e ju d g m e nt m e tho d b e low.
C a us e o f pro b l e m ∙ Compr e ssor Dis c h a r g e or Top T e mp e r a tur e s e nsor de f e c tiv e . (Op e n/ S hort)
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
Y e s
Compr e ssor
d is c h a r g e or Top t e mp e r a tur e s e nsor
c onn e c tor (CN4 3 , CN45)
c onn e c t ed to PCB?
Is th e r e sistor v a lu e m a t c hin g with
“NOTE1” t a b l e ?
A f t e r s e p a r a tin g th e Compr e ssor Dis c h a r g e or
Top T e mp e r a tur e s e nsor c onn e c tor f rom th e PCB,
m ea sur e th e r e sist a n c e v a lu e b e tw ee n
th e two t e rmin a ls.
R e st a rt op e r a tion a f t e r r e pl a c e th e PCB
R e st a rt op e r a tion a f t e r c onn e c tin g
th e c onn e c tor to PCB
R e pl a c e this p a rt a s it is th e de f e c tiv e o f th e
Compr e ssor Dis c h a r g e or
Top T e mp e r a tur e s e nsor its e l f .
Y e s
No
No
R e sist a n c e v a lu e
m ea sur e p a rt
R e sist a n c e v a lu e
m ea sur e p a rt
TO P 1 TO P 2
TO P 2
NOTE1
T e mp e r a tur e (°C) R e sist a n c e (KΩ)
1 3 0
1 2 0
100
80
60
2 5
2 0
10
0
8.9
11. 2
18.5
32 .0
59.0
2 00.0
2 4 2 .0
3 6 2 .0
55 3 .0
TO P 1