Question about Air-O-Swiss U7142 Humidifier

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The humidity sensor says that the room is at 78% humidity so the humidifier won't work. I set it to 80%, get 2 seconds of mist, and then it reads 80%. Help? Is there a way to override the auto-sensor and just have the mist running?

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Posted on Jan 02, 2017

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SOURCE: Humidifier makes a huge noise and no mist

According to the Crane's Troubleshooting section:
The power light is green but there is no mist being emitted:
- Check that there is water in the tank.
- Check for possible lime deposits on the water level sensor or the nebulizer.
- Make sure that nothing blocks the vapor output slots.
- Check that the fan vent on bottom of humidifier is not blocked.
- Empty the humidifier and rinse the water basin with cool tap water and allow to dry for 15 to 30 min.

This next part may or may not be relevant.
Humidifier power light is staying red and not turning green. Or, Humidifier is working then stops:
- Ensure that water level sensor is assembled properly.
- Clean water float.
- Call service center and request replacement water float.

Barring that, here is the service center contact info:
Dart Warehouse Corporation
Tel: 1-888-599-0952 (Business hours Mon-Fri 9:00 am - 4:00 pm Ct)
Website: http://www.crane-usa.com
1835 Ferry Road
Naperville, Illinois 60563

Posted on Feb 12, 2008

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freetek
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SOURCE: sunbeam ultrasonic humidifier runs but produces no mist

It sounds very much like the transducer has failed. This is likely a crystal transducer and since they produce the agitation that should cause a mist, they are running continuously; not a good thing for something that is trying to shake iteslf apart all the time. These require input from a circuit that produces the fairly high level of power needed to drive the crystal so it could also be the source of the problem.
This isn't something an owner is able to diagnose unless they have some technical training.     

Posted on Nov 08, 2008

  • 8 Answers

SOURCE: humidifier not working

Ensure there is water in the tank.

  • This may be caused by mineral deposits in the water channels. Try the following: Clean the water tank, base and vapor nozzel with a damp cloth to remove any build up in the water channel.
  • When was the last time the cartridge was changed. (If it’s been over 3 months, this could be the reason why the unit is not working properly.)
  • Unscrew the demineralization cartridge and run the unit, if it starts to mist then you need a new cartridge. (insert cartridge link here)
  • The screw cap for the water tank, onto which one first screws in the demineralization cartridge, has a small rubber gasket. make sure that gasket is not too far down against the outer screw cap. If it is the spring loaded button would not work properly to let the water descend into the base tank .
    The solution: push up on that small rubber gasket so that it is as far up and away from the screw cap as it can be without falling off, and voila! you get mist!!
  • If you have changed the filter recently then take out the cartridge and run the unit without the cartridge for about 15 to 20 minutes.

Posted on Jul 03, 2009

  • 1 Answer

SOURCE: Air-o-Swiss room humidifier (model 7142) No mist flows

It is intersting that several folks seem to be having this problem. In early December 2009 I noticed that the replacement AOS demineralization granules were wet when I opened the sealed metal envelope. I opened a couple of others and they were the same way. After a couple of weeks after replacement, the unit started puffing steam before it stopped altogether. My husband opened the cartridge and said all the crystals were clumped to one side. I emptied out the cartridge and ran it for a few days (about 4) without any crystals until it stopped generating mist altogether. Air still flows and the heater works. But it appears that the ultrasonic disc in the bottom of the unit quit. Not sure if this was all coincidental... Especially when seeing several other people with the same problems over the last couple of months.

Tonight the AOS customer service/tech support said I shouldn't run the unit without the crystals but they appeared to be concerned about the white dust.

Anyway, the AOS U7142 has a three year warranty. If you have a receipt call customer service at 1-800-336-0326 immediately. If it is after three years they said they would charge $60 to fix it.

Posted on Jan 05, 2010

  • 1 Answer

SOURCE: Kenmore Humidifier not operating?

Turn the unit off, lift the fan assembly off the base, and push the connector together that goes to the float switch on the bottom of the fan motor. If you hold the switch in with your finger (careful not to get into the fan blades) and turn the unit on, the F indication should go away. F (as in Fill), apparently, means the base has no water. The plastic tube that sticks up out of the base floats on the water and pushes the switch. Put it back together, it should work!

Posted on Mar 02, 2010

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1 Answer

My Holmes HM630 humidifier doesn't get up to 40% it levels out 33-34%. How do I get it up to 40-50% air humidity level?


, this cool mist tower is ideal for medium rooms. It provides a refreshingly cool, invisible mist, as well as a digital humidistat which offers precise humidity control for your optimal comfort.

I got this off the Sears website so either the room you're trying to make humid is too large, or the humidistat needs to be set properly. Also make sure there is plenty of water in the tank.

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Why does my humidifiers does not have any smoke coming out?


My Guess is that the reletive humidity in the room is not low enough to see any vapors coming from the machine. Normaly you won't see these anyway. Some models in the stores seem to make more mist than what you get at home. If the humididty level in a room is close to what is coming out of the machine there will be no signs of any mist coming out. Just make sure the filters are clean and check and make sure the water level is going down on the machine and this will tell you its workin. the faster you are using the water in the tank the more you are putting in the air! If this is a hot mist machine then I would say the heating element in the machine is not working.

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Hi, We just purchased a vicks warm mist humidifier. We used it for two nights in my daughter's bedroom...we then noticed a sticky residue over sections of the wall as well as crackling paint? Is this...


is it possible that you have the mist turned up too high? If the room is very small, the high setting could be providing too much humidity to the room. I'm thinking that the paint crackled as the humidity climbed.

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Air/no moisture


the reason why you might not see the moisture coming out cause it's a cool mist humidifier. to test your humidity in your house you might want to get a humidistat which will letyou know if your getting the humidity in your room or not. now if it's a warm mist you will see it but it's a coolmist so you won't see moisture coming out.

Jul 16, 2009 | Hunter 33201 Humidifier

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Sunbeam Ultrasonic Humidifier, model: 697-6


Located My Manual:
Hope this helps!

1. Remove tank from base. Turn upside down and unscrew filling cap. Fill tank with clean, cool, distilled, or tap water. Water temp should NEVER be too hot or too cold. Return tank to base and let sit for a few minutes. Be sure the filling cap of the tank is tightened firmly.

2. Plug power cord into a 110-120V AC wall outlet only. Turn power switch to "on" position. Power light will illuminate. Turn mist nozzle until desired level is being released. Aim nozzle away from furniture and walls.

3. Always turn humidifier off when water runs* out. Unit will continue to operate when tank is empty.
*Humidifier will run up to 12 hrs on low; 6 hrs on high.

DO NOT LET WATER SIT IN TANK FOR LONG. THIS CAN ENCOURAGE BACTERIAL GROWTH.
Place unit on level surface away from direct sunlight.
DO NOT ADD MEDICATION OF ANY TYPE INTO THE NOZZLE, BASE, OR WATER TANK.
ALWAYS LEAVE ROOM DOOR PARTLY OPEN. DO NOT MOVE, TILT, OR EMPTY WHILE OPERATING.

Mild bleach and water solution for cleaning, never detergent.
Clean every 3rd day during use. Clean after long storage
Humidity varies from room to room. Aim for 30 - 50% relative humidity. If windows/ walls fog or frost, reduce mist intensity. If room too humid, ventilate by opening door or window; adjust mist intensity.

Sep 22, 2008 | Sunbeam Ultrasonic Humidifier

1 Answer

Short cycling


It doesn't sound like it has failed.

The whole point of the % setting is so that the room holds at that %. When the humidity drops lower than, it will kick in. When it raises to that number it will turn off.

If the on and off is bugging you try raising the percentage. Or lower the temperature of your house. Heating will dry out the air and cause your machine to kick in.

Good Luck.

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Honeywell warm mist humidifier shuts off


I want do any thi9ng after I====push the power button once,
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stoped blinking. Nothing happen at this point as for as
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Jan 04, 2008 | Honeywell Warm Mist HWM-255 Humidifier

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Water on floor around humidifier


I haven't had any problems with my Vicks Cool Mist Humidifier other than the fact that the area surrounding it is slightly wet after operating for a couple of hours....While I understand that I was using this to moisturize the air during a cold, I knew this would happen, because the air in my room is not dry. If the room isn't dry, the mist that it's putting out in to the air has no where to go but surround the humidifier. All I did to stop this was to buy a water proof mat. I suggest you do the same -- Also, in regards to the water smelling -- You should be cleaning out and drying the basin after every use. Water shouldn't smell unless you let it stagnate inside the plastic -- Try running distilled vinegar through the machine for a couple of minutes -- Also, I would use an extension cord and let it run outside so that your house doesnt smell like Vinegar.

Oct 18, 2007 | Vicks Cool Mist V400 Humidifier

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