Daewoo KOR-816T Service Manual Page 21

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TROUBLE SHOOTING GUIDE
(TROUBLE 2)
Grill heater (top heater) is not heated; Food will not become hot.
CONDITION
CHECK RESULT CAUSE REMEDY
Outlet has
proper voltage
Fuse does not
blow.
Check continuity of
magnetron
No
Continuity
Defective
magnetron
Replace
Check continuity of noise
filter board
Check continuity of
power supply cord
No
Continuity
No
Continuity
Normal
Defective
noise filter board
Open power
supply cord
Defective
touch control
circuit
Replace
Adjust
Adjust
All these switches must be replaced at the same time, please refer to (7.Interlock Mechanism and Adjust)
for adjustment instructions.
NOTE
CONDITION
CHECK RESULT CAUSE REMEDY
Grill heater is
not heated.
No
Continuity
Check continuity of
primary interlock switch
Check continuity of
secondary interlock switch
Check continuity of
heater
Check D.C. voltage
being supplied to
RELAY (RY2) coil
Malfunction
of primary
interlock switch
Malfunction
of secondary
interlock switch
Defective
touch control
circuit
Faulty
contacts of
RELAY
(RY2) or open
relay coil
Defective
heater
Adjust or
Replace
Adjust or
Replace
Replace
Replace
Replace
No
Continuity
No
Continuity
0 V
Approx
12 VDC
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