20 Most Recent Holmes Products Warm Mist HM5700 Humidifier Questions & Answers

Hard water will build up on the rubber plunger casket and the beveled edge were the plunger seats in the cap, if you clean both pieces it will seat it self again

I dont see any other way to fix other than purchase another cap... I ordered 2 replacement caps from here they were the cheapest tat I found http://www.jardenstore.com/productdetails.aspx?BrandId=494&pid=1783 but they seem to be out of stock at the moment These http://www.appliancefactoryparts.com/humidifiers/holmes/holmes-water-tanks.html are 3 dollars more here hope this helps

I ordered 2 replacement caps from here they were the cheapest tat I found http://www.jardenstore.com/productdetails.aspx?BrandId=494&pid=1783 but they seem to be out of stock at the moment These http://www.appliancefactoryparts.com/humidifiers/holmes/holmes-water-tanks.html are 3 dollars more here hope this helps

You might need to clean around the heating element... we have very hard water and calcium builds up on and around the heating element and all the surrounding parts. I take it apart and pour CPR around the element and scrub with a brush .. once you get it clean it should stay running.

Mine did this also so I unplugged it and took it apart and cleaned it. I used a sponge to clean all around the heating element with a mixture of white vinegar and water and also put some in the water resevoir and shook it for a few minutes and rinsed it out. It ran perfectly after I did this. It gets mineral deposit build up after a while so you might need to do this every week. There are directions on the back of the humidifer that explain this and what you should do. I hope this helped

You really have an mineral problem. I have pretty much same here. I only use bottle water that comes in gallon size from grocery. Ot is the only way I have found other than constand cleaners or a water softener. Good luck

Go to http://www.holmesproducts.com/service-%26-support/product-support/instruction-manuals/humidifiers/humidifiers-manual.html and see if one of those listed will help you. The specific model HMS 250 seems to be out of print, but the current ones may help you with what you need to know. If not, contact them at https://www.holmesproducts.com/contactus?cid=contact-us and see if they will email you the correct one.

If the water has been sitting in the reservoir for days without use, it may develop a film on the ultrasonic element which inhibits the creation of the mist to come out the top of your humidifier. I would lift off the tank and empty the reservoir. Then VERY GENTLY with a piece of paper towel, wipe the ultrasonic element (looks like a disk the size of a quarter at the bottom of the reservoir) to clean off any film. Then replace the tank and let the reservoir fill up the tank and try it again. Good luck thebqe