Microwave Oven Troubleshooting Quiz

What is a possible cause of a microwave oven having no power?

• Overload

• Busted oven lamp

• Low voltage transformer operation

• Defective magnetron

What should be checked using a multi-tester if a microwave oven doesn't light?

• Oven lamp

• Diode

• High voltage capacitor

• Fuse

What could be the cause of a microwave oven having power but no display?

• Overload

• Busted oven lamp

• Foreign materials shorting the circuit board

• Defective magnetron

What tool is used in pre-testing a microwave oven?

• VOM (multi-tester)

• Screw Driver

• Pliers

• Long nose pliers

What should be checked if a microwave oven doesn't operate when turned on?

• High voltage transformer operation

• Plug connection

• Front cover closure

• AC power cord connection

What should be visually checked if a microwave oven is not powering on?

• AC power cord for loose connection

• Front cover for proper closure

• Plug for proper connection

• High voltage transformer for operation

What should be done if the unit does not operate when turned on?

• Check if the front cover is properly closed

• Check if the plug is properly connected

• Push front cover/ front lid properly

• Secure the connection of the plug

What should be checked if the high voltage transformer is continuously operated for more than 3 hours?

• Magnetron

• Fuse

• Diode

• High voltage capacitor

What should be replaced if foreign materials short the circuit board of a microwave oven?

• High voltage transformer

• Digital programmer circuit assembly

• Diode

• Fuse

What should be checked if the microwave oven is not heating food properly?

• The oven light is not turning on

• The turntable is not rotating

• The microwave magnetron is not functioning

• The digital display is not working