Before Servicing - Electrolux EI30BM55HB Technical & Service Manual

Basic Information
WARNING
MICROWAVE OVENS CONTAIN CIRCUITRY CAPABLE OF
PRODUCING VERY HIGH VOLTAGE AND CURRENT, CONTACT WITH
FOLLOWING PARTS MAY RESULT IN A SEVERE, POSSIBLY FATAL,
ELECTRICAL SHOCK.
(EXAMPLE)
INVERTER UNIT THAT INCLUDES HIGH VOLTAGE CAPACITOR,
HIGH VOLTAGE POWER TRANSFORMER, HIGH VOLTAGE
RECTIFIER, HEAT SINK ETC., AND MAGNETRON, HIGH VOLTAGE
HARNESS ETC..
READ THE SERVICE MANUAL CAREFULLY AND FOLLOW ALL
INSTRUCTIONS.

Before Servicing

1. Disconnect the power supply cord , and then
remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60
seconds.
WARNING
THE HIGH-VOLTAGE CAPACITOR REMAINS
CHARGED ABOUT 60 SECONDS AFTER THE
OVEN HAS BEEN SWITCHED OFF. WAIT FOR
60 SECONDS AND THEN SHORT-CIRCUIT THE
CONNECTION OF THE HIGH-VOLTAGE
CAPACITOR (THAT IS THE CONNECTING LEAD
OF THE HIGH-VOLTAGE RECTIFIER) AGAINST
THE CHASSIS WITH THE USE OF AN
INSULATED SCREWDRIVER.
Whenever troubleshooting is performed the power
supply must be disconnected. It may in, some cases,
be necessary to connect the power supply after the
outer case has been removed, in this event,
1. Disconnect the power supply cord, and then
remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60
seconds.
4. Disconnect the leads to the primary of the
inverter unit.
5. Ensure that these leads remain isolated from
other components and oven chassis by using
insulation tape.
6. After that procedure, reconnect the power supply
cord.
When the testing is completed,
1. Disconnect the power supply cord, and then
remove outer case.
2. Open the door and block it open.
3. To discharge high voltage capacitor, wait for 60
seconds.
4. Reconnect the leads to the primary of the
inverter unit.
5. Reinstall the outer case (cabinet).
6. Reconnect the power supply cord after the outer
case is installed.
7. Run the oven and check all functions.
After repairing
1. Reconnect all leads removed from components
during testing.
2. Reinstall the outer case (cabinet).
3. Reconnect the power supply cord after the outer
case is installed.
4. Run the oven and check all functions.
Microwave ovens should not be run empty. To
test for the presence of microwave energy within
a cavity, place a cupof cold water on the oven
turntable, close the door and set the power to
HIGH and set the microwave timer for two (2)
minutes. When the two minutes has elapsed
(timer at zero) carefully check that the water is
now hot. If the water remains cold carry out
Before Servicing procedure and re-examine
the connections to the component being tested.
1-6
Don't Touch !
Danger High Voltage