Question about Bionaire BUL7933UM Ultrasonic Cool Mist Humidifier

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Bionare ultrasonic humidifier

Quit making steam yesterday. I have completely taken it apart & cleaned everything. Took the bottom cover off & cannot see any obvious problems, all wiring appears intact, no corrosion or anything that looks out of place..... Fixable or replace?? (Is the model at Sams Club for about $50)

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Posted on Jan 02, 2017

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kel1guy2002
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SOURCE: Looking for a manual for

It took much longer than I thought it would but your manual is here:
http://homeappliance.manualsonline.com/manuals/mfg/bionaire/bu4000.html

If it does not come up make sure that you choose the BU4000 only in your search. The BU4000-UC will not bring up the manual.

Thanks for choosing FixYa.

Kelly

Posted on Sep 16, 2010

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1 Answer

I want to know best way to clean the humidifier and how often?


It all depends on a couple of factors.

First is the type of humidifier your using. Portable or whole house connected to the furnace. Steam, ultrasonic or filter. Your unit's instructions is the best guide as to how often you need to clean it and this can vary from every day to once a heating season.

My recommendation is to watch and clean the unit as soon as you see scale forming. Then in the future, reduce this to just before you see scale forming.

The second is the type of water you are using. Hard tap water is the worst and usually will require every day for small portable steam or ultrasonic units to once a week for filter models. For central whole house humidifiers, once a month (perhaps as little as every two weeks if your water is really hard, >10 grains hardness). There is no fixed formula for this, the idea is to perform on-going, preventive maintenance.

Soft or conditioned water will contain the same amount of minerals as hard, but the softener has replaced the calcium minerals with sodium minerals. (Sodium bicarbonate actually).The result is the humidifier will still form scale but it much easier to remove. With soft water scale, you can just break up the scale with your fingers and the filters can just be submerged in clean water and the salt scale will re-dissolve.

Third, with distilled water, you may only need to clean any of these units annually. (No minerals to for scale).

With any filter humidifier, consider using a commercial bactericide to prevent the growth of bacteria when the water sits for long periods (>14 days). Not so critical with soft water as the salt will retard the growth of bacteria, but very important with hard or distilled water. Don't use this product in ultrasonic or steam humidifiers as it will be carried into the air along with the water vapor, and can be considered as toxic.

With hard water, use a 50/50 solution of white vinegar and water to dissolve the scale buildup. This works best if done on a regular basis. If left go too long, it become impossible to clean properly. You need only use regular water when using soft or distilled water in your humidifier.

Dec 25, 2015 | Kenmore Cool-Mist Ultrasonic Humidifier...

1 Answer

How do I clean the dual tank ultrasonic humidifier membrane


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Dec 14, 2015 | Humidifiers

1 Answer

Humidifier making noise.not steaming


This is an indication that the power supply has issues. You would have to take it apart to check and see what is wrong.

Mar 10, 2015 | Air Innovations Ultrasonic Digital...

1 Answer

Vibration in water feed


I have a General Aire humidifier on my furnace. I was having the same issue with vibration noise. I took the solenoid off and took it apart. There is a part that had a screen and a very small hole. I cleaned all the parts in my ultrasonic cleaner. The I reassembled the solenoid. It had an electromagnet that was held on by one nut. I reinstalled the solenoid mechanism and started the system. I had way better water flow, but still some vibration. I tightened the nut holding the solenoid and electromagnet together and the vibration stopped.

Jan 22, 2013 | General Filters 1099-LH Humidifier

1 Answer

Sunbeam Ultrasonic Humidifier SUL495 quit working in first week. What may have happened.


Same problem. It worked for about a week, then gradually stopped producing mist. No solution.

Nov 29, 2010 | Sunbeam Ultrasonic Humidifier

1 Answer

How do you clean the 705 ultrasonic humidifier


You can soak everything but the motor in bleach or vinegar water. Rinse well with HOT water.
The filter is disposable, cleaning doesn't help with them.

Nov 18, 2009 | Sunbeam Ultrasonic Humidifier

1 Answer

Unit only works upside down!


there is a water level next to the ocilater make sure that the canal is clean. try some water and vinegar

Apr 07, 2009 | Venta VS 100 Humidifier

2 Answers

Thick Cloud of Steam


I would say that the beauty of steam is that it has to get through the 100 degree temperature to leave the aqueous state - i.e. to move from a liquid to a gas.

The benefit of that is that any organizums in the water should be killed as a result of that process. Its possible that it smelt musty or old stagnant water smells but to be honest there is little change of harm to the little ones.

Best wishes

Aug 08, 2008 | Vicks Ultrasonic V5100 Humidifier

2 Answers

No steam comes out


I just took mine apart and cleaned the scale off the heating elements. Filled to the level with hot water and it was steaming good in about 2 mins.

Mar 01, 2008 | Vicks V150SG 1 Gallon Humidifier

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