Visible sparking or arcing during a microwave cycle is not something to wait out or run again. Here is why, and what usually causes it.

Turntable spinning, light on, fan running, and the food comes out cold. That specific combination points toward the parts you should not try to open yourself.

The MMD30S is the 30-inch version of Dacor’s early microwave drawer. A drawer that closes slowly or stops partway often has debris in its tracks or a tired drive, both repairable. Sensor ERROR messages are usually about the food, not the unit.

The MMDV30S and its MMDH30S sibling share a Dacor service manual. A microwave drawer uses interlocks that confirm the drawer is fully closed before heating, and a drawer that does not seat fully will not heat. We test the interlocks and drawer drive together.

The RNMD30S is the Renaissance-era microwave drawer, documented with a 48-page use and care manual. Like all microwave drawers, it has a motorized drawer that wears independently of the microwave. We confirm whether a problem is in the drawer drive, the controls or the heating circuit before quoting.

The DMR24M977W is Dacor’s 24-inch microwave drawer, 1.2 cu. ft., with a humidity sensor that sets time and power for its sensor menus. When that sensor does not detect vapor, the manual says ERROR appears and the oven turns off; small or tightly sealed portions are the usual reason. A drawer that will not open […]

The DMR30M977W has the same 1.2 cu. ft. cavity as the 24-inch drawer in a 30-inch front to line up with 30-inch wall ovens and cooktops. It adds slow baking and warming presets to the usual microwave functions. No heat with the drawer and lights working is a high-voltage problem, tested by a technician with […]

The DMW2420S is Dacor’s 2.0 cu. ft. countertop microwave with sensor cooking and delay start. Its manual shows ERROR when the clock or a quantity is entered outside the allowed range, which clears with STOP/CLEAR. A microwave that stops the moment it starts usually has a door switch problem, and those switches are safety interlocks […]

The DCM24S combines a 900-watt microwave with convection baking in a 1.5 cu. ft. cavity, and Dacor offered ACTK trim kits to build it in. When microwave cooking works but convection does not, the convection element and its control are what we test. Dacor’s own service manual for the DCM24 helps with that diagnosis.

The PCOR30S is a microwave, convection oven and ventilation hood in one unit above a 30-inch range. Its manual shows plain-language messages such as ERROR WEIGHT TOO LARGE or TOO SMALL when an entry is out of range. Because it sits above the cooktop, grease reaches its vent fan and filters, and a fan that […]