TROUBLE SHOOTING GUIDE
Following the procedure below to check if the oven is defective or not.
1.Check grounding 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 transformer, disconnect one lead 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) Oven does not operate at all ; any inputs can not be accepted.
CONDITION
Fuse blows.
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Check continuity of interlock |
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monitor switch with door closed |
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| No Continuity |
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| Replace fuse |
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CAUSE
Malfunction of interlock moni- tor switch
REMEDY
Replace
NOTE 1
Check continuity of of primary 
interlock switch contact with door
partially open until interlock moni- tor switch contact close
Check continuity of primary winding of low voltage trans- former
Continuity
0Ω or infinite 
Approx.
150~310
(normal)
Shorted con- tacts of primary interlock switch.
Defective low voltage trans- former
Replace
NOTE 1
Replace
Disconnect one side of the lead wire connected form high volt- age transformer to the high volt- age capacitor and operate the unit
Normal
Fuse again
blows
Defective high voltage capacitor
Defective high voltage trans- former
Replace
Replace
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