- Countertop installation
- 2.0 cu. ft. capacity (single-source figure)
The Dacor DMW2420B is a current 24-inch countertop microwave. The Dacor DMW2420B is a 24-inch countertop microwave, in Black. Dacor did not market the DMW2420B's platform under one of its named design collections in the sources behind this page, so no collection claim is made for it here. The features that set the DMW2420B apart on paper are Countertop installation; 2.0 cu. ft. capacity (single-source figure). The DMW2420B follows the one part of Dacor's naming pattern that is actually confirmed: the digits after the prefix (2420) give the nominal size in inches. Beyond that and the hinge/finish letters, no official Dacor decode of the rest of the DMW2420B's string exists, so nothing further is claimed here. This appliance type, including the DMW2420B, does not have a documented rating-plate location, so expect to find the plate on a door edge, along the door frame, or on an interior wall, and take a photo of it once located rather than assume a single spot. On a unit like the DMW2420B, the calls that come in most are no-heat complaints traced to the magnetron circuit, followed by a turntable that has stopped rotating. The components that fail most on a built-in microwave like the DMW2420B are the magnetron itself, the door interlock switches, and the turntable motor. What usually goes wrong on a microwave built like the DMW2420B is a magnetron that no longer produces heat, a worn door-interlock switch, or a control keypad membrane that stops responding. A service visit on the DMW2420B starts by confirming the door interlocks close correctly, then testing the magnetron circuit directly, rather than assuming the most expensive part first. The DMW2420B will never display an alphanumeric error code, because Dacor's own manual for this appliance type has none to give it — a confirmed absence, not a missing page in this research. The DMW2420B is diagnosed by symptom instead — what it is doing, not a code it is displaying. Whatever code a site claims a Dacor microwave like the DMW2420B can display, the primary manual only ever shows the generic word ERROR; treat any more specific alphanumeric table as copied from the wall-oven documentation rather than sourced from a microwave manual. Dacor remains a distinct luxury brand with its own dealer network and its own dacor.com site, even though the DMW2420B is built on engineering shared with parent company Samsung since the 2016 deal closed. The DMW2420B is a product of a brand with real history: Pasadena, California, 1965, three generations of family ownership, and then a September 2016 acquisition that made Dacor a wholly owned Samsung Electronics America subsidiary while it kept its own name and dealer network. Owners searching for help with the DMW2420B online will find plenty of code tables and decode charts; this page only repeats what a primary Dacor or Samsung document actually supports for this platform, and says so plainly wherever it does not. Worth saying plainly here: the DMW2420B listing itself is thin — supported by only a single retailer source in the research behind this site rather than a Dacor manual or a second independent listing — so treat any spec above beyond the model's existence as reported once, and confirm it against the physical unit before relying on it for a repair.
A DMW2420B shows one undifferentiated word — ERROR — for several unrelated conditions. There is no Dacor code table for a microwave, and the F0 and F1 codes attributed to one online are the wall-oven table with the label swapped. The diagnosis for a DMW2420B is in our repair guides; the other units in its family are in the model directory; the original spec is at www.dacor.com.
