Daewoo KOG-366T0S Service Manual page 35

(TROUBLE2) Oven does not operate at all; any inputs can not be acceted.
Condition
Fuse blows
Check
Check continuity
of interlock
monitor switch
with door closed.
(COM NC)
Check continuity
of both Primary
and secondary
interlock switch
with door closed
Check continuity of
primary interlock
switch contact with
door partially open
unit interlock
monitor switch
contact close
(COM NC
close)
Check continuity
of primary winding
of low lvoltage
transformer.
Disconnect high
voltage fuse and
operate the unit
Result
Malfunction of
(COM NC)
Interlock
monitor
Continuity
switch
(COM NC)
No
continuity
Malfunction of
No
interlock switch
Continuity
Continuity
Shorted
Continuity
contacts of
primary
interlock switch
Replace Low
OΩ or
Voltage
infinite
Transformer
Approx 90-
120Ω(norm
al)
Defective high
Fuse again
voltage
bolows
transformer
34
Cause
Replace
Remedy
NOTE 1
Replace
NOTE 1
Replace
NOTE 1
Replace
Replace