Daewoo KOC-910K0P(AL), Service Manual, Page: 20 / 40

19
CONDITION RESULT CAUSE REMEDY
No
continuity
Defective
magnetron.
Replace
CHECK
Outlet has
proper
voltage
fuse does not
blow?
Check continuity of
magnetron
No
continuity
Open power
supply cord
Replace
Check continuity of
power supply cord
No
continuity
Defective touch
control circuit
Replace
CONDITION RESULT CAUSE REMEDY
No
continuity
Malfunction of
primary interlock
switch
Adjust or
replace
CHECK
Turn table
motor and
oven lamp
do not turn on
Check continuity of
primary interlock switch
No
continuity
Malfunction of
secondary
interlock and
D.O.Mswitch
Adjust or
replace
Check continuity of
secondary interlock
and D.O.M switch
0 V
Defective touch
control Circuit
Replace
Approx.
24V DC
Fault contacts
of RELAY
(RY4) or open
relay coil.
Replace
NOTE :
All these switches must be replaced at the same time, please refer to (7.Interlock mechanism and adjust)
for 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.
Check D.C voltage
being supplied to
RELAY(RY4) coil