Danby Microwave Ovens - Page 7 - Recent Questions, Troubleshooting & Support
I have a Danby Designer
Rust can form from the steam and condensation as you say, and it's a good idea to always cover food and wipe the oven out after using it. You can sand off the bad paint and rust the same way you can on a car, and then touch up the paint if it's a minor amount. Spray paint specifically made for microwave cooking cavities is available. (You don't want to use paint that may have metallic components.) It may be available locally if you have appliance parts stores in your area, and you can find the paint online as well. There's no need to replace the oven just yet, unless you find a good deal on a new one and you're looking for an excuse.
I have the danby designer
The Magnetron in your unit is no longer resonating properly. The Magnetron produces the microwave frequencies and when it resonates properly, it will provide the excitation to heat your item(s). As well, the diode that accompanies the magnetron needs to be replaced as well. Should it be under warranty, take it back. Out of warranty? Have an appliance tech repair it (usually around $175) or get a new microwave.
This is typical for most microwaves. No such thing as quality any more.
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