CF is displayed on my humidifier...what is that?

Which model do you have? On the H12 and 696 series models, F indicates refill the humidifier; the reservoir bottle is out of water. The CF means check the filter/wick. Replace the wick if appropriate. The CF message will appear every 720 hours of run time for the humidifier. It will be reset when the unit is unplugged or loses power.

You can find the Owner's manual for many of the Aircare humidifiers on the product page. Start at https://aircareproducts.com/ Then look for your humidifier. The link to the owner's manual is just below the Add to Cart button on the right side of the page. Use the manual to identify the correct filter or wick for your humidifier.

I hope this helps.

Cindy Wells

Check Filter Indicator The ability of any humidifier to efficiently supply humidity output relies heavily on the condition of the filter. As the filter loads with impurities it gradually loses its wicking capability. When this happens, moisture output is reduced and the humidifier has to work longer to satisfy the selected setting. This humidifier has a check filter reminder timed to appear after 720 hours of operation. When the Check Filter (CF) message is displayed, disconnect the power cord and check the condition of the filter. If a build-up of deposits or severe discoloration is evident replace the filter to restore maximum efficiency. The CF message is reset when the humidifier is plugged back in.

You have to unplug the unit from the electrical outlet. Just shutting it off won't clear the CF code.

It may mean "Change Filter." After you replace the filter, unplug the humidifier for 30 seconds, and then you plug it back in, the CF code should be gone.

Change the filter then unplug the unit from the electrical outlet and the code will be cleared. Just shutting the humidifier off won't clear the code, it has to be unplugged from the power to clear the flashing CF.

Found the answer in the original manual. CF means check filter, this displays every 7200 hours of operation. If the filter is OK just unplug the unit for 2 minutes and the display will reset.

It means Change Filter.

However, assuming that you have done that in the recent past, you probably want to know more. I'm not sure how this actually works (that is why it shows CF). I saw it for the first time after 2 or 3 years of using my humidifier. (And I had just changed the filter a week or so previously).

You may have to turn the unit off/on or even unplug it to clear the message, then it should operate normally.

The CF comes on after 720 hours of operation (while continuously plugged in). Really stands for Check FIlter, not Change FIlter.
Just pull the plug and let is stay unplugged for 30 seconds or so. When you plug it back in, it will be reset for another 720 hours.
Gene

Per the owner's manual, you simply unplug your device for 30 seconds. Upon plugging it back in, the CF notification should be cleared.

This assumes you have also changed the filter, of course.

Contact these guys and they should be able to let you know where to get a user guide. http://www.sears.com/sr/misc/sears/custs... unfortunately they dont seem to have them online - please complain to them in the hope they might make this available instantly Hope This Helps :)