Samsung Microwave Error Code C-F2: How to Fix It

Medium 30-60 minutes Low Severity Verified June 2026
Error Code
C-F2
Brand
Samsung
Product Type
microwave
Severity
Low
DIY Difficulty
Medium
Estimated Fix Time
30-60 minutes
Samsung microwave error code C-F2 indicates a humidity sensor fault in sensor cook models. This error prevents the microwave from properly detecting moisture levels during automatic cooking cycles, but the unit can still operate in manual mode.
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Tools You'll Need

How to Fix Error Code C-F2

  1. Power cycle the microwave

    Always unplug the microwave before performing any troubleshooting to avoid electrical shock.
  2. Clean the humidity sensor area

  3. Check for moisture buildup

  4. Test manual cooking functions

  5. Run sensor cook test

  6. Access the humidity sensor

    Only attempt this if comfortable with appliance repair. High voltage components are present even when unplugged.
  7. Replace the humidity sensor

    Take a photo of wire connections before disconnecting to ensure proper reassembly.

Parts You May Need

Humidity sensor
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Wire nuts or electrical connectors
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Humidity sensor
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Wire nuts or electrical connectors
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Humidity sensor
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Wire nuts or electrical connectors
Check Price on Amazon
Humidity sensor
Check Price on Amazon
Wire nuts or electrical connectors
Check Price on Amazon
Humidity sensor
Check Price on Amazon
Wire nuts or electrical connectors
Check Price on Amazon
Humidity sensor
Check Price on Amazon
Wire nuts or electrical connectors
Check Price on Amazon
Humidity sensor
Check Price on Amazon
Wire nuts or electrical connectors
Check Price on Amazon
Humidity sensor
Check Price on Amazon
Wire nuts or electrical connectors
Check Price on Amazon
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When to Call a Professional

Call a professional appliance technician if you're uncomfortable removing the microwave case, if multiple error codes appear, or if the microwave stops heating entirely. Also seek professional help if the humidity sensor replacement doesn't resolve the issue, as this may indicate a control board problem.

Frequently Asked Questions

Can I still use my Samsung microwave with C-F2 error?
Yes, you can still use manual cooking functions with time and power level settings. Only the automatic sensor cook features will be affected by the C-F2 humidity sensor error.
How much does a Samsung microwave humidity sensor cost?
Replacement humidity sensors typically cost between $15-40 depending on your specific Samsung microwave model. Check your model number to ensure compatibility.
Why does my Samsung microwave show C-F2 after cleaning?
If C-F2 appears after cleaning, you may have used too much moisture or cleaning solution. Ensure the interior is completely dry and the sensor area is free of cleaning residue.
Is Samsung microwave C-F2 error dangerous?
No, the C-F2 error is not dangerous. It's simply a sensor fault that affects automatic cooking features. Your microwave is safe to use in manual mode.
How long do Samsung microwave humidity sensors last?
Humidity sensors typically last 5-10 years with normal use. Frequent exposure to steam, grease buildup, or electrical surges can shorten their lifespan.