Daewoo KOR-1A1G0A Service Manual page 23

TROUBLE SHOOTING GUIDE
CONDITION
Outlet has
proper voltage
Fuse does not
blow.
NOTE
All these switches must be replaced at the same time, please refer to " Interlock Mechanism And Adjustment" .
(TROUBLE 2) Display shows all figures selected, but oven does not start cooking, even thouh desired program and time are
set and start pad is tapped.
CONDITIO N
Turn table
motor, and
oven lamp do
not turn on
CHECK
Check continuity of
magnetron
Check continuity of
power supply cord
Display do not
shown countdown
CHECK
Check continuity of
primary interlock switch
Check continuity of
secondary interlock switch
Check D.C. voltage
being supplied to
RELAY (RY2) coil
RESULT CAUSE
No Defective
Continuity magnetron
No Open power
Continuity supply cord
Normal
Defective touch
control circuit
Malfunction of
secondar y
interlock switch
RESULT CAUSE
No
Malfunction
Continuity
of primary
interlock switch
No
Malfunction
Continuity
of secondar
interlock switch
0 V
Defective
touch control
Approx
15 VD C
contacts of
(RY2) or open
relay coil
22
REMEDY
Replace
Replace
Replace
Replace
REMEDY
Adjust or
Replace
Adjust or
Replace
Replace
circuit
Replace
Fault
RELAY