Cautions And Warnings To Be Observed During Disassembly And Troubleshooting - Amana A1200S Service

CAUTIONS and WARNINGS to be Observed During
Disassembly and Troubleshooting
Unlike many other appliances, the microwave oven is
high-voltage, high-current equipment. Though it is free
from danger in ordinary use, extreme care should be
taken during repair.
!
CAUTION
Servicemen should remove their watches whenever
working close to or replacing the magnetron.
Checking the ground
Do not operate on a 2-wire extension cord. The
microwave oven is designed to be used when grounded,
it is imperative, therefore, to make sure it is grounded
properly before beginning repair work.
!
WARNING
After the oven is turned off, an electric charge may
remain in the high voltage capacitor. When replacing
or checking parts, remove the power plug from the
outlet and short the terminal of the high voltage
capacitor (terminal of lead wire from diode) to chassis
ground with an insulated handle screwdriver and
discharge.
!
DANGER
There is high voltage present, with high current
capabilities in the circuits of the high voltage winding
and filament winding of the high voltage transformer. It
is extremely dangerous to work on or near these
circuits with the oven energized. Do not measure the
voltage in the high voltage circuit including filament
voltage of the magnetron.
!
WARNING
Never touch any circuit with your hand nor with an
insulated tool during operation.
RE220002 Rev. 6
When parts must be replaced, remove the power cord
from the outlet.
!
When the fuse is blown due to the operation of the
monitor switch, replacement of complete interlock
switch must be performed.
1. This is mandatory. Refer to page 29 for the
necessary adjustments for this switch assembly.
2. When replacing the fuse, confirm that it has the
appropriate rating for these models.
!
Avoid inserting nails, wire, etc. through and holes in
the unit during operation.
Never insert a wire, nail, or any other metal object
through the lamp holes on the cavity or any other holes
or gaps because such object may work as an antenna
and cause microwave leakage.
Confirm After Repair
1. After repair or replacement of parts, make sure that
the screws of the oven, etc. are neither loose nor
missing.
2. Make sure that all electrical connections are tight
before inserting the plug into the wall outlet.
3. Check for microwave leakage. (Refer to procedure
for measuring microwave leakage.)
10
WARNING
CAUTION