Written by
Adrian Soto Appliance Repair Content SpecialistPublished September 5, 2026Updated October 20, 2026
Error codeC-d2 / Cd2
ApplianceMicrowave
Quick answer
C-d2 (Cd2) is a door or key error on a Samsung microwave. Unplug, let it dry or wait, then request service if it returns.
Model compatibility: Samsung reuses codes across series and model years, so C-d2 / Cd2 may mean something different on another appliance or generation. Confirm this against your model’s documentation and record your full model number before acting.
Plain language
What this code means
C-d2 is a door or key error on a Samsung microwave.
C-d2 is one of the C-series codes on a Samsung microwave, and it points to a door or key error. It sits in the code list for current Samsung microwaves.
What C-d2 means
Samsung puts C-d0 and C-d1 in the same row of its table, all described as a door or key error.
First steps
Start by removing power, either at the plug or at the breaker.
If the electronics recently met moisture, such as a spill or steam rising from a cooktop, give the microwave time to dry.
With no moisture involved, wait 60 seconds and turn the microwave back on.
When the same code shows up again, request service.
Los Angeles owners can phone (310) 896-4231 to arrange service on a Samsung microwave. Keep the model number handy, note that the display says C-d2, and mention the restart you did. You can also read about microwave repair.
Important safety warning. Do not attempt repairs involving electrical components, gas, water lines, refrigerant or sealed systems. Unplug the appliance if it is safe to reach the outlet, and leave internal diagnostics to a qualified technician.
Seeing this code on your Samsung appliance?
Book a specialist visit for a clear estimate and approval before any repair.
