Written by
Nadia Okafor Appliance Care EditorPublished October 26, 2026
VERIFIED
Error codeC-A2 / CA2
ApplianceMicrowave
The CA2 message explained
The entry C-A2 / CA2 belongs to Samsung’s microwave error list and describes a functional error. C-A1 and C-A0 sit in the same part of the list and carry the same description. The listing applies to the present generation of Samsung microwaves.
Resetting the microwave after C-A2
Step
Action
1
Shut the microwave down completely by pulling its plug or flipping the breaker.
2
Wet from a spill or from cooktop steam? Wait until it has dried.
3
If it is dry, wait 60 seconds and then restore power.
4
If the same code reappears once the microwave is running, request service.
Owners around San Francisco and the Bay Area can reach us at (415) 969-6153 about a Samsung microwave, and Samsung microwave repair describes what we handle. Keep the code, the model number and your reset notes within reach.
Model compatibility: Samsung reuses codes across series and model years, so C-A2 / CA2 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-A2 signals a functional error in Samsung's microwave code list.
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.
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Replacement parts are selected for the exact model and confirmed with you before ordering or installation.
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