Servicing Requirements
1.1
Health & Safety
Note:
When servicing the oven, health and safety issues must be considered at all times. Specific safety issues are listed below with their appropriate icon. These are
illustrated throughout the service information to remind service people of the health and safety issues
1.1.1
Electrical Safety
WARNING! TO AVOID ELECTRIC SHOCK!
Do not attempt to service this oven without suitable training and qualifications.
Unlike other appliances, the microwave oven is high-voltage and high-current equipment.
Though it is free from danger in ordinary use, extreme care should be taken during repair.
BEFORE TOUCHING any parts of the oven, always remove the power plug from the outlet.
For about 60 seconds after the oven stops, an electric charge remains in the high voltage capacitor. When replacing or checking, you must wait to permit
the capacitor discarding.
Ensure the main power has been disconnected before servicing any part of the oven. If the power is required to be on for electrical fault finding, then
extreme
care should be taken not to make contact with electrical components other than with testing probes.
Ensure the oven is turned off when removing any electrical component or connection.
1.1.2
Good Working Practices
Ensure the work areas are kept tidy and free of hazards while servicing the oven. On completion of the servicing, ensure the oven and work areas are left
clean and tidy.
1.1.3
Insulation Test
Megger test to check insulation.
1.1.4
Sheet Metal Edges
When working around cut sheet metal edges use appropriate gloves or protection to eliminate the chance of receiving a laceration.
1.1.5
Microwave emissions
Precautions to be observed before and during servicing to avoid possible exposure to excessive microwave energy. On every service call. A check for
microwave energy emission must be made. It requires that the power density of the microwave radiation emitted by a microwave oven shall not exceed
five (5) milliwatts per square centimeter at any point 5 centimeters (about 2 inches) or more from the external surface of the oven.
21 CFR 1030.10, Performance Standard for Microwave Ovens.