If you experienced arcing and a burnt plastic smell in your microwave and convection oven after placing a small stainless steel brown in it, it is likely that the brownie caused a microwave fire or some other electrical issue. In such cases, it is crucial to take safety precautions and assess the situation before using the appliance again.
Here's what you should do:
Turn off and unplug the appliance: If you haven't already done so, immediately turn off and unplug the microwave and convection oven to prevent any further damage or potential hazards.
Allow the appliance to cool down: Give the oven enough time to cool down completely before inspecting it further.
Inspect for damage: Carefully examine the interior of the microwave and convection oven for any visible damage, such as melted or deformed plastic parts, burnt wiring, or signs of arcing. If you notice any significant damage, do not use the appliance, and contact a professional repair service or the manufacturer for assistance.
Clean the microwave: If there are any residual burnt smells or particles, clean the interior of the microwave and convection oven thoroughly. Use a mixture of water and mild detergent to wipe down the surfaces. Make sure to remove any food particles, burnt debris, or melted plastic if present.
Test the appliance safely: If you didn't find any visible damage, and the appliance appears to be functioning normally, you can do a test run without any food inside. Plug the microwave and convection oven back in, set it for a short period, and observe its operation. Pay attention to any unusual sounds, smells, or sparking. If you notice anything concerning, immediately turn it off and seek professional repair.
Contact a professional: If you are uncertain about the safety of your microwave and convection oven, or if there was significant damage during the arcing incident, it's best to contact a professional appliance repair service or the manufacturer for further evaluation and repair.
Prevent future incidents: To avoid similar incidents in the future, make sure you follow the manufacturer's guidelines for using microwave-safe and convection-safe cookware. Avoid using metal containers, as they can cause arcing and fires in microwave ovens.
Remember, safety should always be your top priority when dealing with potentially hazardous situations involving appliances. When in doubt, consult a professional to ensure your microwave and convection oven are safe to use.