Question about Aprilaire 550 Humidifier

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High pitched squeal after a few hours of use. Unit is about 6 year old.

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Possible defective pump or fan

Posted on Nov 19, 2009

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Posted on Jan 02, 2017

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1 Answer

Fan won't run. New filter and wick. Why won't the fan come on?


work switch back and forth a few times . sometimes they seem to gum up over summer

Feb 06, 2015 | Humidifiers

1 Answer

Aprilaire Humidifier Model 600 squeals shortly after being turned on


I have seen some humidifiers do this becuase of high water pressure. Try closing and opening the saddle valve and see if it helps at all.

Nov 28, 2012 | Aprilaire 600 Humidifier

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Our Kenmore 50pt dehumidifer is less than 2 years old, only used for 1 summer, tried to use it last week, it starts/runs but does not withdraw any water, please help. Thanks kindly


There are 5 basic, yet solvable reason for what you described. Please pay particular attention to numbers 1 & 2.

1. The humidity extraction level is set to HIGH. Lower it to 32-35%. If you unit is manual control,
turn the control knob to Maximum.

2. Air intake filter is dirty or clogged. Turn unit OFF, & Unplug the
Unit, before removing to inspect & clean it, if necessary. If washed,
allow filter to completely dry before reinstalling. DO NOT operate
the unit without the filter. Filter should be cleaned once every 2 weeks.

3. Obstructed air flow. Maintain a minimum of 12 to 18" of clear air
space around the entire unit.

4. Cooling coils are dirty and need to be cleaned. Use warm water & dish washing liquid to
clean the coils. Rinse and wipe dry. Apply a light coating of WD40 to the coils.

5. Ambient air temperature at floor level is between 40 - 60 degrees.
dehumidifiers do not work well between those temperatures
(Unless, you have a Low Temp Unit). This applies mainly to
where the air temperature at floor level is colder than at shoulder
level
in basement applications. Raising the unit up off the floor,
onto a sturdy table, counter top, etc, that can handle the weight
of the unit, plus a full tank of water, will usually resolve this
problem.

If none of the above solves the problem, it may be a case of the compressor needs to be recharged with refrigerant gas or that the humidity condenser sensor has failed. These things usually occur in units that are 5 years old or older. It's rare in a unit younger than that. But, it can happen.

I hope this helped you to troubleshoot and solve the problem. Please let me know. Thanks.

Jun 29, 2011 | Humidifiers

4 Answers

Why is my humidifier forming black percipitate in the tank? how can i remedy this


The black particles are pretty common. This is a byproduct from minerals in the water and is normal.
Just clean the tank regularly (with diluted bleach). The black particles will also collect in the steamer unit (the top blue part). Wash this out with hot water (no soap or anything) after each use. If you tap it a few times on the floor of your bathtub you'll probably see some of this black stuff come out. No worries, just rinse again with hot water.
There's no harm from the black particles.

Feb 28, 2011 | Vicks Warm Steam Vaporizer 1.5 Gallon...

1 Answer

My desert springs humidifier doesn't work. I suspect that it's about 6 or 7 years old. The furnace is still running and I've tried all solutions that seem obvious to me. Is it possible that the motor has...


Well, let's see what service the unit has had in its 6 or 7 years of working--

When was the Humidifying pad last changed?
These usually have to be changed every year-- to get good performance from the humidifier...
So-- Have you looked inside the large door?-- what does the pad look like?

When the furnace is running, you should be able to open the humidifier door, and look in, (Air should be sucking INTO the door as you open it, if the unit is properly mounted in the return air duct work..) and if the humidistat is calling -- the motor should be turning the big wheel, and moisture is being added, as the wet surface is exposed to the air returning to the furnace. What do you see?

There is also a water sump, filled by a float valve-- is that valve admitting water into the sump?
Is the pad wicking up this water, and rotating into the air stream?

That pad is easily changed-- your hard ware store probably has replacement pads-- they can be sewn back on to the wheel, after removing the old one.

Let us know if we can help further-

Mack B

Jan 15, 2011 | Desert Spring DS3200 Humidifier

1 Answer

Sears humidifier is running at less than 50% after only one year


If your sure you have water supply to the unit,the float switch/valve is either clogged or defective.

Jan 09, 2010 | Kenmore Humidifiers

1 Answer

The red light is always on in my humidifier control panel. When I set it to test, I hear nothing clicking. No water runs into my humidifier. The unit (model 600) is about 6 years old.


if your using an outdoor thermostat then it may not be connected properly or the manual mode resistor wires are touching. these are connected on the humidistat just to the right of the H H terminals

Dec 12, 2009 | Aprilaire 600 Humidifier

1 Answer

Humidifier not producing enough vapour


have you looked to getting a whole house humidifier. This elinates the need to constanly put water in a can. And they are relatively maintenance free.

Feb 08, 2009 | Sunbeam 701 Humidifier

1 Answer

Pinging noise in duct work


it could be merely condensation or maybe the expansion and contraction of the metal as it heats up and cools down. if possible try insulating the vent if not done so already

Jan 27, 2009 | Aprilaire 700 Humidifier

3 Answers

Humidity not going up


I have a similar problem with mine too. I am interested to see if anyone can diagnose this problem

Nov 30, 2007 | Honeywell HE360A1027 Whole House...

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