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Hot & Cool LEDs flash

Hot & Cool LEDs flash - Mems sensor not working

Samsung · Washing Machines

What does Hot & Cool LEDs flash mean?

The Hot and Cool LEDs flash together, indicating that the Mems sensor is not working properly. This sensor is crucial for the washer's operation.

Common Causes

  • Faulty Mems sensor

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    **Restart your washer:** Unplug the washer from the wall outlet, wait 5 minutes, then plug it back in securely.

  2. 2

    **Check the load inside:** Make sure your washer isn't overloaded and that clothes are evenly distributed. An unbalanced load can sometimes trigger sensor alerts.

  3. 3

    **Verify power supply:** Ensure the power cord is firmly plugged into both the washer and the wall outlet. Also, check your home's circuit breaker to confirm it hasn't tripped.

  4. 4

    **Contact Support:** If the 'Hot' and 'Cool' LEDs continue to flash after trying these steps, it indicates a persistent issue with an internal sensor. Please contact Samsung customer service for professional assistance.

Browse all codes in this manual (13)
Verified technical data. Last updated: April 2026

Related Faults

Cool LED FlashesCool LED flashes - Water level sensor issue or unsuccessful fillEco Warm LED FlashesEco Warm LED flashes - Button not workingExtra High LED FlashesExtra High LED flashes - Unsuccessful fill
Source: Samsung Washing Machines
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