Whirlpool dishwasher error code

Sanitize light flashing

Sanitize temperature not reached

The water did not get hot enough during the cycle to meet the sanitize standard.

Also shown on some Whirlpool models as: Sanitized light blinking

Try these free fixes first

Unplug the dishwasher before opening any panel.

  1. Run the kitchen hot water tap for about 30 seconds and check it reaches at least 120°F (49°C).
  2. Raise the water heater setting slightly if your water is too cool.
  3. Avoid opening the door during the cycle, which lets heat escape.
  4. Unplug the dishwasher, or turn off its breaker, for one minute to reset the control, then run the cycle again.

Still showing Sanitize light flashing?

If the light keeps flashing with hot water supplied, a technician should check the heating element and temperature sensor.

Heating elementCheck that the part matches your exact model number (usually on a sticker inside the door or on the back).Find the part
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Questions people ask

What does Sanitize light flashing mean on a Whirlpool dishwasher?

Sanitize light flashing on a Whirlpool dishwasher means: sanitize temperature not reached. The water did not get hot enough during the cycle to meet the sanitize standard.

How do I fix Whirlpool dishwasher error Sanitize light flashing?

Run the kitchen hot water tap for about 30 seconds and check it reaches at least 120°F (49°C). Raise the water heater setting slightly if your water is too cool. Avoid opening the door during the cycle, which lets heat escape. Unplug the dishwasher, or turn off its breaker, for one minute to reset the control, then run the cycle again.

When should I call a repair technician?

If the light keeps flashing with hot water supplied, a technician should check the heating element and temperature sensor.

Related dishwasher codes

Source: Whirlpool official support · Reviewed 2026-10-01