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E-21 Samsung Microwave Moderate Repair

Samsung E-21 Error Code: Meaning, Fix & Cost

Open Temp Sensor Error

What E-21 Means

Open Temp Sensor Error

Likely cause: Sensor wire broken, sensor degraded, or control board not reading sensor

Estimated Repair Cost $150-300

How to Fix It

Check sensor wiring for damage or disconnection. Test sensor resistance with a multimeter (compare to spec in service manual). Reset power at breaker for 30 seconds. If sensor reads out of range, replace the sensor.

Difficulty: Moderate Repair

Consider calling a professional for this repair.

Official Reference

https://www.samsung.com/ca/support/home-appliances/meaning-of-error-codes-on-your-samsung-microwave/

Related Guides & Resources

Frequently Asked Questions

What does the Samsung E-21 error code mean?

Open Temp Sensor Error.

What causes the E-21 code on a Samsung microwave?

Sensor wire broken, sensor degraded, or control board not reading sensor.

How do I fix the E-21 error on my Samsung microwave?

Check sensor wiring for damage or disconnection. Test sensor resistance with a multimeter (compare to spec in service manual). Reset power at breaker for 30 seconds. If sensor reads out of range, replace the sensor. Estimated repair cost: $150-300.

Is the E-21 error code a DIY fix or do I need a professional?

This is rated as moderate repair. This may require a professional technician.

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