Confirm After Repair; Part Replacement; Sharp Edges - GE JES2251SJ Technical Service Manual

MAGNETRON
FILAMENT TERMINAL
Touch chassis side first then short to the terminal of the
magnetron filament terminal.
Discharging the high voltage capacitors
WARNING
There is high voltage present with high current
capabilities in the circuits of the primary and
secondary windings, choke coil and heat sink
of the inverter. 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 the filament
voltage of the magnetron.
WARNING
Never touch any circuit wiring with your hand
or with an insulated tool during operation.

6.3. Part replacement.

When any part or component is to be replaced, always
ensure that the power cord is removed from the wall
outlet.
6.4. When the 18A fuse is blown due to
the operation of the short switch:
WARNING
When the 18A 120V fuse is blown due to the
operation of the interlock monitor switch, replace
all of the components (primary latch switch, door
switch, short switch and power relay B (RY1)).
1. This is mandatory. Refer to "adjustments and
measurements" for the location of these switches.
INSULATED HANDLE
SCREWDRIVER
2. When replacing the fuse, confirm that it has the
appropriate rating for these models.
3. When replacing faulty switches, be sure the
mounting tabs are not bent, broken or deficient
in their ability to hold the switches.
6.5. Avoid inserting nails, wire etc.
through any 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 holes or
gaps, because such objects may work as an antenna
and cause microwave leakage.

6.6. Confirm after repair

1. After repair or replacement of parts, make sure
that the screws of the oven, etc. are neither loose
nor missing. Microwave might leak if screws are
not properly tightened.
2. Make sure that all electrical connections are tight
before inserting the plug into the wall outlet.
3. Check for microwave energy leakage. (Refer to
procedure for measuring microwave energy
leakage).
CAUTION MICROWAVE RADIATION
USE CAUTION NOT TO BECOME EXPOSED TO
R A D I AT I O N F R O M T H E M I C R O WAV E
M A G N E T R O N
CONDUCTING MICROWAVE ENERGY
IMPORTANT NOTICE
The following components have potentials above
2000V while the appliance is operated.
Magnetron
●
High voltage transformer (Located on inverter (U))
●
High voltage diodes (Located on inverter (U))
●
High voltage capacitors (Located on inverter (U))
●
Pay special attention to these areas.
When the appliance is operated with the door hinges
or magnetron installed incorrectly, the microwave
leakage can exceed more than 5mW/cm
or exchange, it is very important to check if the
magnetron and the door hinges are correctly installed.

6.7. Sharp edges

Caution
Please use caution when unpacking, installing or
moving the unit, as some exposed edges may be
sharp to the touch and cause injury if not handled
with care.
12
O R O T H E R P A R T S
. After repair
2