Samsung ME21 Over-the-Range Microwave

The ME21 is an over-the-range microwave, so its fault list mixes the cooking side (magnetron, door switches) with the vent hood (exhaust fan). Below are the covered models, the recurring problems, the wear parts, and a repair-or-replace line — with one important safety warning about servicing it.

Models covered#

Three variants built from 2018 to 2024 share one platform:

Common problems for this model#

Wear parts#

Verify the part number against your exact model before ordering:

Before you call#

Rule out the easy causes first. If the microwave will not start, the door switch is the prime suspect; if it starts but the plate does not spin, the turntable motor (DE31-10172D) is the likely part; and if the keypad is unresponsive, the control panel assembly (DE94-01806H) is usually to blame. Confirm the outlet has power and try the wall switch above the range before assuming a control failure.

Recall status#

There are no active recalls on the Samsung ME21 series as of 2026-05-28. Check your model against the Consumer Product Safety Commission list at cpsc.gov periodically.

Repair or replace?#

Microwaves have a shorter age window than large appliances. For the ME21: under 7 years old with a fix below 50% of a comparable new unit, repair; after 7 years, weigh recent costs — once repairs over the last 2-3 years exceed 40% of replacement, replace. Door-switch and fan repairs are always worthwhile, but because a magnetron replacement often runs more than half the price of a new microwave, magnetron failure on a unit past 7 years usually favors replacement.

Maintenance#

Clean the grease filter monthly by soaking it in warm, soapy water, and replace the charcoal filter yearly if the unit is not ducted to the exterior. Never run the microwave empty, which damages the magnetron, and wipe the interior weekly, since baked-on splatters absorb energy and cut heating efficiency.

FAQ#

Why does my ME21 run but not heat?#

A running microwave with no heat almost always means a failed magnetron (OM75P(31)), which generates the actual microwaves. Before condemning it, check the cheaper high-voltage diode and capacitor first — but note that microwave capacitors retain lethal voltage even when unplugged, so professional repair is strongly recommended.

The microwave will not start — is it the door switch?#

Very likely: a failed door switch stops the microwave from starting, or in some cases lets it run with the door open. The switches come as a kit (DE96-00738H, a 3-pack) because they tend to fail together, and it is a common, inexpensive repair.

Why is the exhaust fan loud or not working?#

A noisy or dead vent-hood fan is usually the fan motor (DE31-00049D). Clean the grease filter first, since a clogged filter strains the fan and can be the whole problem before the motor is even at fault.

Book a Samsung ME21 repair#

We service Samsung microwaves across Sacramento and the Bay Area, and our techs carry the common ME21 parts, so most repairs finish in a single visit. Book your repair for same-day or next-day service, upfront pricing, and a 90-day parts-and-labor warranty.