Trouble Shooting Guide - Turbo Air TMW-1100E Service Manual

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