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Error code · Washer

Samsung Washer Warm Lights Blinking: Communication Error

On Samsung washers without a digital display, a blinking Warm light on its own is the pattern for a communication error. One control board has stopped talking to another. This follows the AC and AE group…

Medium · inspection needed
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Code
Warm
Appliance
Washer
Brand
Samsung
Warranty
30-day workmanship

What Warm means

On Samsung washers without a digital display, a blinking Warm light on its own is the pattern for a communication error. One control board has stopped talking to another. This follows the AC and AE group on numeric displays. The washer may stop and ignore presses. The cycle may not start, or the washer may stop partway and ignore button presses. Nothing about water or the drum is involved in this pattern.

Common causes of Warm

  • Connector seating between boards
  • Wiring harness between modules
  • Main board communication circuit
✓ One safe check you can try

1. Turn the washer off and leave it for two to three minutes. 2. Turn it back on and restart the cycle. 3. Check that the outlet works and the plug is seated. 4. If the light blinks again, stop and request service.

! Why to stop there
  • A restart does not show which board stopped answering.
  • We check the connectors and harness between boards.
  • You approve a written price before any board is quoted.
Opening a panel yourself does not automatically cancel a manufacturer warranty, but it can cause accidental damage, and some manufacturers set their own service conditions. Check your warranty terms, or ask us, before deciding.
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Other Washer codes

Hot & Small / Hot & LowSamsung Washer Hot and Small, or Hot and Low Lights Blinking: Hoses Swapped Hot & Tap Cold / Hot & CoolSamsung Washer Hot and Tap Cold, or Hot and Cool Lights Blinking: MEMS Sensor Error Hot & WarmSamsung Washer Hot and Warm Lights Blinking: Unbalanced Load Self Clean LED blinkingSamsung Washer Self Clean Light Lights Blinking: Cleaning Reminder Small / LowSamsung Washer Small or Low Lights Blinking: No Drain Tap Cold / Cool / Medium / MidSamsung Washer Tap Cold, Cool, Medium, or Mid Lights Blinking: Overflow Cold / Eco WarmSamsung Washer Cold or Eco Warm Lights Blinking: Stuck Button Extra Large / Extra High / Large / High blinkingSamsung Washer Extra Large, Extra High, Large, or High Lights Blinking: Water Not Filling
WarmWarm questions
What does the Warm light mean?

On a washer without a digital display, a blinking Warm light alone is the pattern for a communication error. It is the same condition that numeric-display washers show as AC or AE.

Will a restart help?

Sometimes it re-establishes contact. If it returns, the link needs inspection. Turn it off for two to three minutes first, then restart the cycle. If the Warm light returns, the link between boards needs inspection.

Is it the same as AC or AE?

Yes. It is the same condition as the AC and AE codes on numeric displays. The Warm light is how washers without a digital display show it, so the cause and the checks are the same.

Book a visit

Still seeing Warm?

A technician diagnoses it on site and gives you the price in writing before any work starts.

(713) 561-5298