Top 20 Holmes Products Cool Mist HM3500 Humidifier Questions & Answers

You may purchase new filters directly from Holmes Products website

http://www.holmesproducts.com/Filters.aspx?cid=1610&page=-1&gclid=CKys-rPLpqcCFQ975Qod82UqAA

There are several variables that will determine the gallons used per 24 hour period.

• At what humidity level do you have it set for? The higher the level, the faster consumption.
• How much air movement is there in the are in the house/area of the humidifier?
• How air tight is your home?.
• How may people occupy the home?
• Whats the temperature setting for your primary heat source?

Let's assume that everything is perfect. Your humidifier holds approximately 6 gallons of water, when completely full. The ideal humidity level depending on the outside air temperature is 40 to 50%. Once the humidity level you have it set for is reached, the humidifier shuts off. When the humidity level drops significantly, it turns back on. So, as you can see, it's difficult to come up with an exact figure. But based on if everything was perfect, about 1.5 to 2 quarts per hour or almost 6 gallons in 24 hours.

For more details on this humidifier call 1-800-546-5637.

Hope this helps you.

Rich

http://safemanuals.com/user-guide-instructions-owner-manual/HOLMES/HM3500-_E

http://www.holmesproducts.com/Index.aspx

I think you would be etter served to just repair that crack - it can be done in minutes with a product called Plastiweld, available at your local auto parts store. Make sure you allow it time to cure as stated in the directions. I have used it on several different jobs and never had a failure.
Good luck!!

Hi there,

The tank may be full. Your dehumidifier has a safety device that turns off the dehumidifier when the water tank is full. Usually the tank itself either presses against a switch or there's a device connected to the tank that triggers a switch when the tank is in place and full.
If you've emptied the tank and the unit doesn't run, inspect the place where the tank rests to see if there's a switch or mechanism that's not being activated. You may be able to turn it on with a simple flick of your finger.

Post comments  for more help or information .........

Good Luck!!

Thanks

I am assuming a lime buildup from evaporated water. Use vinegar or drip coffee maker cleaner.

I have a Holmes cool-mist One-Touch Humidifier, and you can't reach the blades to clean them, and you can't take the console apart. I finally decided to use two spray bottles and clean and them rinse the Humidifer while holding the console upside down and over a sink. The one bottle you could fill with any mild cleaner plus a lot of water to dilute the cleaner. Maybe dishwashing liquid (not the dishwasher stuff), or a little bit of ammonia, or rubbing alcohol, or vinegar. Spray that on the blades while the machine is upside down, and a lot of sooty dirt drips out. Then rinse with another spray bottle full of plain water. Leave the console upside down on a towel to drip-dry. This is also how you can clean silk flowers that collect dust.

Hi, you can download the PDF manual from here

http://safemanuals.com/user-guide-instructions-owner-manual/HOLMES/HM3500-_E

Mine also cracked along the seam several years ago. I sealed the crack using two-part waterproof plastic epoxy (found at any hardware store.) Not really pretty to look at, but it hasn't leaked since!

Hey Tony, Thanks for the Question,
Does it specifically state that that replacement is 5 years or just parts? you have to read the fine print sorry to say, but if it is the whole unit then yes, they will replace the whole thing,
If its parts only then maybe they would send you out a new tank which more than likely would solve your problem too! hope that was helpful, let us know and please leave some feed back on how we did, thanks again,
mr.grzz

This should be the part description:
AMRE Supply - Canada's Parts Pros [ 7911000006583

I had the same problem if you dissasemble the unit you will probably find a capacitor between two blue wires has blown out

You can use distilled water to fill your humidifier that would save your filters.
Or you can try soaking your filter in a 50-50 water and white vinegar solution to try and clean them to use again.

Good Luck.

It's not a problem for the tanks to empty at an uneven rate...as long as the second one continues to supply water after the first one is empty. Yes, a slight tilt off of level could cause this. One way to test for this is to turn the entire unit around. If the floor is uneven, this might cause the other tank to empty first. You could also try placing a thin spacer (cardboard?) under a couple of the feet to change the level. Whichever tank is lowest should tend to empty last.

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