Is it worth repairing a countertop microwave?
Often no. Countertop microwaves cost $70–$200 new. A magnetron replacement — the part that generates heat — often costs $150–$250. Once repair costs more than replacement, the decision makes itself.
What about built-in or over-the-range microwaves?
Different story. These run $300–$600+ new and involve cabinet-integrated venting, making replacement more disruptive. The same 50%-of-replacement rule applies, and repairs like a door switch, control panel, or turntable motor are almost always worth doing.
How do I know which situation applies to me?
If you have a standalone countertop microwave with a failed magnetron or high-voltage transformer, replace it. If you have a built-in unit, or the issue is a switch, fuse, or turntable motor on any microwave, repair.
Call (631) 350-4333 for an honest assessment either way.