ME21M706BAS C21 error
Your Samsung ME21M706BAS is showing C21. Before replacing parts, confirm the model tag matches ME21M706BAS: Inside the door opening on the frame, or on the rear panel when the unit is pulled from the cabinet. On this Samsung microwave, C21 means Temperature sensor or over-temperature error. Unplug and let the unit cool before restarting. The steps below follow the field-service order for the ME21M706BAS platform — not the generic Samsung C21 page. Cross-check part fit with ME21M706BAS before ordering — use the model-specific parts diagram. If the code cleared after a reset but returned mid-cycle, treat that as a confirmed fault rather than a one-time glitch.
Parts for this repair
We don't yet have a verified exact part number for this model. Search for a compatible Temperature sensor or over-temperature.
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Fix steps
- Verify the model tag reads ME21M706BAS — Inside the door opening on the frame, or on the rear panel when the unit is pulled from the cabinet.
- Reset C21: unplug the microwave or switch off the breaker for 5 minutes, then restore power.
- Inspect hoses, connections, and visible wiring for damage, clogs, or loose fittings related to C21.
- Cross-check part fit with ME21M706BAS before ordering — use the model-specific parts diagram.
- Run a test cycle after repair. If the code returns, use the compatible parts below or the full brand code guide.
Professional assistance recommended
This issue may be unsafe for DIY repair. Follow the safety guidance above and contact a qualified technician.
Repair guidance is for informational purposes only. We do not guarantee that any fix will resolve your issue, and you assume all risk when following these steps. Terms & disclaimer
FAQ
What does C21 mean on a Samsung ME21M706BAS?
Temperature sensor or over-temperature error. Unplug and let the unit cool before restarting.
How do I reset C21 on a ME21M706BAS?
Unplug the microwave or switch it off at the breaker for 5 minutes, then restore power and restart. If C21 returns on the ME21M706BAS, the underlying fault is still present.
What part do I need for ME21M706BAS C21?
Try the reset and troubleshooting steps first. C21 on the ME21M706BAS is not always a failed part.
Is C21 on the ME21M706BAS easy to fix?
Many owners fix this themselves with basic tools. Start with the reset and steps above, then check compatible parts below.