16
(TROUBLE 1) Oven does not operate at all ; any inputs can not be accepted.
TROUBLE SHOOTING GUIDE
Does the fan motor work when you
shut the door and turn the timer?
Does the
fuse blow?
If oulet has proper voltage,
check continuity of power
supply cord
Check continuity of interlock
monitor switch with door shut.
Replace primary, secondary
interlock switch and interlock
monitor switch.
Replace fuse and check
continuity of both interlock
switch’s contact and monitor
switch’s conact with door
partially open until monitor
switch contact.
Replace primary, secondary
interlock switch and interlock
monitor switch.
Disconnect on side of the lead
wire connected from trans-
former to the high voltage
capacitor, and operate oven.
Replace high
voltage
capacitor.
Replace high
voltage transformer
Replace power
supply cord
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.
NO
YES
YES (Refer to next page)
Continuity
NO Continuity
Both continuity
Normal
Fuse again
NO Continuity
NO
NO