Daewoo KOC-960P0A Service Manual page 33

(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.
Condition
Turn table motor, fan
motor and oven lamp do
not turn on
(TROUBLE 5) Rotisserie does not operate.
Condition
Rotisserie motor does
not operate.
Check
Check continuity
of primary
interlock switch
Check continuity of
secondary interlock and
D.O.M. switch
Check D.C. voltage being
supplied to RELAY "5"
coil.
Check
Check continuity
of primary
interlock switch
Check continuity
of secondary
interlock switch
Check continuity
of rotisserie motor
Check D.C. voltage
being supplied to
RELAY (RY1) coil
Result
Malfunction of
No
Primary interlock
Continuity
switch
No Malfunction of
Continuity secondary interlock
and D.O.M. switch
Defective touch
0V control circuit
Faulty contacts of
Approx.
RELAY "5" or open
15VDC
relay coil
Result
Malfunction of
No
Primary interlock
Continuity
switch
Malfunction of
No
secondary interlock
Continuity
switch
No
Defective motor
Continuity
Defective touch
0V
control circuit
Faulty contacts of
Approx.
RELAY (RY1) or
15VDC
open relay coil
36
Cause Remedy
Adjust or
replace
Adjust or
replace
Replace
Replace
Cause Remedy
Adjust or
replace
Adjust or
replace
Replace
Replace
Replace