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TROUBLE SHOOTING GUIDE
Following the procedure below to check if the oven is defective or not.
1) Check earthing before trouble checking.
2) Be careful of the high voltage circuit.
3) Discharge the high voltage capacitor.
4) When checking the continuity of the switches, fuse or high voltage tranformer, disconnect one load wire from these
parts and check continuity with the AC plug removed. To do otherwise may result in a false reading or damage to
your meter.
NOTE : When electric parts are checked, be sure the power cord is not inserted the wall outlet.
Check wire harness, wiring and connected of the terminals and power cord before check the parts listed below.
(TROUBLE 1) Door shut, timer set, but no cooking takes place.
CONDITION
Fuse blows.
Check continuty of interlock
monitor switch with door closed
(COM
Check continuity of both prima-
ry and secondary interlock
switch with door colosed
Check continuity of primary inter-
lock switch contact with door
partially open until interlock mon-
itor switch contact close
(COM
Check continuity of primary
winding of low voltage trans-
former
Disconnect high voltage fuse
and operate the unit
CHECK
NC)
NC)
RESULT
Malfunction of
Continuity
interlock moni-
tor switch
No Continuity
No Continuity
Malfunction of
interlock switch
Continuity
Continuity
Shorted contacts
of primary inter-
lock switch.
0Ω or infinite
Defective low
voltage trans-
Approx.
former
150~310 (nor-
mal)
Defective high
Fuse again
voltage trans-
blows
former
16
CAUSE
REMEDY
Replace
NOTE 1
Replace
NOTE 1
Replace
NOTE 1
Replace
Replace
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