DAEWOO ELECTRONICS KOR-63D59A User Manual download pdf (Page 15)

(TROUBLE 1) Oven does not operate at all ; any inputs can not be accepted.

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.

Does the

fuse blow?

If outlet has proper voltage,

check continuity of power sup-

ply cord.

ContinuityYES

NO Continuity

Does the fan motor work when you

shut the door and turn the timer?

Check continuity of interlock

monitor switch with door shut.

Replace primary, secondary

interlock switch and interlock

monitor switch.

Replace fuse and check con-

tinuity of both interlock

switch’s contact and monitor

switch’s contact with door

partially open until monitor

switch contact.

Replace primary, secondary

interlock switch and interlock

monitor switch.

Normal

Fuse again

Both continuity

Disconnect one side of the

lead wire connected from

transformer to the high volt-

age capacitor, and operate

oven.

Replace high volt-

age capacitor.

Replace high volt-

age transformer

Replace power sup-

ply cord.

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DAEWOO ELECTRONICS KOR-63D59A User Manual Page 15

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