Daewoo KOC-910K0P Service Manual page 25

CONDITION
Outlet has
Check continuity of magnetron
proper volt-
age Fuse
does not
blow?
NOTE
All these switches must be replaced at the same time, please refer to (7. Interlock mechanism and adjustment)
adjustment instructions
(TROUBLE 2) Display shows all figures selected, but oven does not start cooking, even though desired program and
time are set and start button is tapped.
CONDITION
Check continuity of primary inter-
Turn table
motor and
oven lamp
do not turn
on
Check continuity of secondary
Check D.C. voltage being sup-
CHECK
Check continuity of
power supply cord
CHECK
lock switch
interlock and D.O.M switch
plied to RELAY (RY4) coil
RESULT
No
Continuity
No
Continuity
Continuity
Defective touch
RESULT
No
Continuity
primary interlock
No
Continuity
0 V
Defective touch
Approx.
Faulty contacts of
24 VDC
RELAY (RY4) or
24
CAUSE REMEDY
Defective
magnetron
Open power
supply cord
control circuit
CAUSE REMEDY
Malfunction of
switch
Malfunction of
secondary
interlock and
D.O.M switch
control circuit
open relay coil
Replace
Replace
Replace
Adjust or
replace
Adjust or
replace
Replace
Replace