warning Homedics

Error Code Red light illuminates on the Clean indicator/reset button

The transducer/ultrasonic membrane needs cleaning. The clean LED will illuminate red indicating it is time to clean the transducer/ultrasonic membrane.

? What Causes This

Transducer/ultrasonic membrane has mineral deposits from water that need to be removed. Failure to clean may cause reduced or no mist output.

How to Fix It

  1. Remove the tank cover and set aside.
  2. Remove the tank and pour out any water remaining.
  3. Over a sink, twist to remove the water reservoir and pour out remaining water.
  4. Reattach the water reservoir.
  5. Fill tank with 13oz./385mL of water.
  6. Swish the water around the tank in all directions.
  7. Pour out remaining water.
  8. Clean the transducer/ultrasonic membrane with a 50/50 mix of white vinegar and water on a cotton swab. Wipe off with a damp cotton swab.
  9. After cleaning, reassemble the humidifier, fill with water, plug in, and turn on.
  10. After filling the tank with water, press and hold the clean indicator/reset button until the red LED turns off.

Source: page 12 of the official manual

From the manual

Manual page 12 — Homedics error Red light illuminates on the Clean indicator/reset button

This error code appears in:

Homedics Uhe-Cmtf91 Humidifier