Daewoo KOC-1C0KB Service Manual page 34

TROUBLE3) Although display shows, oven cooking is not operated
(Including operating problems of start button)
1. Check points
CHECK
Check contact of door hook to
primary interlock switch, monitor
switch and DOM switch
Check continuity of monitor
switch and DOM switch
Check insertion of DOM terminal
to PCB
Check resistance of top heater,
back heater and halogen heater
Check resistance and rotation of
convection fan motor and blower
motor
Check continuity of all the heater
relay
2. Check points after repair
- After repair or replacement of parts, operate the oven in convection 200°C during 10 minutes
- Check the cavity grow warm
- You need to reconfirm the above guidances in trouble again.
RESULT
Yes
Fault contacts
No
Yes
No continuity
No
Yes
No
insertion
No
Yes
Resistance of
heater is lower or
higher than the
standard
No
Yes
Resistance of
convection fan
motor and blower
motor are lower or
higher than the
standard, so that
rotation does not
stop smoothly
No
Yes
No continuity
33
CAUSE AND REMEDY
Modify location of door and
door hook or replace door
assembly
Replace switch which cause
a problem
Insert DOM terminal to PCB
Replace heater which
causes a problem
Replace motor which causes
a problem
Replace Control Assembly