Daewoo KOC-970T1S, Service Manual

Page: 23 / 48

TROUBLE SHOOTING GUIDE
(TROUBLE 4) Display shows all figures selected, but oven does not start cooking,
even though desired program and time are set and start pad is tapped.
(TROUBLE 5) 1) Under heater is not heated; Food will not become hot.
2) Convection motor does not rotate.
C O N D ITIO N
C H E C K R E S U LT C A U S E R E M E D Y
Tu rn ta b le
m o to r a n d
o ve n la m p d o
n o t tu rn o n
N o
C o n tin u ity
A d ju s t o r
re p la ce
A d ju s t o r
re p la ce
R e p la ce
R e p la ce
M a lfu n ctio n
o f p rim a ry
in te rlo ck
sw itch
N o
C o n tin u ity
0 V
A p p ro x.
13 VD C
C h e ck co n tin u ity o f
p rim a ry in te rlo ck sw itch
C h e ck co n tin u ity o f
se co n d a ry in te rlo ck a n d
D .O .M . sw itch
C h e ck D .C . vo lta g e
b e in g su p p lie d to
R EL AY (R Y4 ) co il
M a lfu n ctio n
o f se co n d a ry
in te rlo ck a n d
D .O .M . sw itch
D e fe ctive
to u ch co n tro l
circu it
F a u lty
co n ta cts o f
R EL AY
(R Y 4 ) o r o p e n
re la y co il
C O N D ITIO N
C H E C K R E S U LT C A U S E R E M E D Y
1 ) U n d e r h e a te r
is n o t h e a te d .
2 ) C o n v e ctio n
fa n a n d m o to r
d o e s n o t ro ta te .
N o
C o n tin u ity
A d ju s t o r
re p la ce
A d ju s t o r
re p la ce
R e p la ce
R e p la ce
M a lfu n ctio n
o f p rim a ry
in te rlo ck
sw itch
N o
C o n tin u ity
0 V
A p p ro x.
1 3 V D C
C h e ck co n tin u ity o f
p rim a ry in te rlo ck sw itch
C h e ck co n tin u ity o f
se co n d a ry in te rlo ck sw itch
C h e ck D .C . vo lta g e
b e in g su p p lie d to
R EL AY (R Y6 ) co il
M a lfu n ctio n
o f se co n d a ry
in te rlo ck sw itch
D e fe ctive
to u ch co n tro l
circu it
F a u lty
co n ta cts o f
R EL AY
(R Y 6 ) o r o p e n
re la y co il
R e p la ce
N o
C o n tin u ity
C h e ck co n tin u ity o f
h e a te r (m o to r)
D e fe ctive
h e a te r(m o to r)