Question about Comfort-Aire BHD-501 Dehumidifier

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My dehumidifier doesn't seem to be removing any moisture from the air at all. Could it need recharged as you might recharge an air conditioner. It's a model BHD-501B.

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Hi,
Here is a tip that will help you with basic trouble shooting..

http://www.fixya.com/support/r3877515-dehumidifier_problems_dehumidifier

heatman101

Posted on Apr 28, 2010

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6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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How to recharge a dehumidifier with refrigerant


Good Afternoon Friend,

I understand your Frigidaire dehumidifier, model# FDF50S, is not removing moisture from the air, and you are wondering how to recharge it with refrigerant. First, I suggest making sure that there is a minimum of 12 inches clearance around your dehumidifier. This will help for the air flow. Secondly, make sure that the temperature where your appliance is located is between 41 degrees F and 96 degrees F. If it comes down to you having to recharge your dehumidifier, this is typically not a do it yourself fix, as there are no step by step instruction manuals for this. I suggest contacting your local authorized technician for further assistance. Hope this is helpful.

-Best Regards-
WP

Jun 17, 2014 | Frigidaire FDF50S Dehumidifier

Tip

Dehumidifier VS. Air conditioner


A dehumidifier is basically the same thing as an air conditioner but both coils (condenser and evaporator) are in the same unit meaning a dehumidifier exhaust warm air in the same room it is in. running a dehumidifier would make an air conditioner run more because of the warm exhaust, when you run an air conditioner it acts like a dehumidifier and dries the air. As far as saving energy it all depends on the size of the AC and dehumidifier and the size of the room. If you want warm dry air, use a dehumidifier; if you want cool dry air run the AC but not both.
How do all these parts fit together to pull moisture from the air? It's fairly simple, but very effective:
  1. A fan collects air from the surrounding area and pulls it into the dehumidifier.
  2. As the air passes through, it comes into contact with the dehumidifier's cooled coils. These coils use condensation to pull moisture from the air. The collected moisture remains on the coils and drips into the dehumidifier's reservoir.
  3. The dehumidifier reheats the air and exhausts it back into the room.
A dehumidifier usually has a removable plastic bucket for are reservoir; most buckets also have a place where you can hook up a hose so the collected water can drain straight into a floor drain or pump. This frees you from having to remember to dump out the water. But don't worry too much about the reservoir overflowing -- most dehumidifiers also have an automatic shut-off. If you're using a dehumidifier in extremely moist conditions,however, or if you need to keep your dehumidifier on all the time, you should look into a unit with a built-in condensate pump, which regularly pumps water out of the unit's reservoir rather than simply relying on gravity to empty it as a hose does.



on May 18, 2010 | Dehumidifiers

2 Answers

How to change coolant in dehumidifier


Improve the FixYa experience for everyone by voting. I want you to let me know if the solution(s) suggested were of any value. Constructive criticism is welcomed.

Hi,

Since you didn't provide a model, the suggestions are not model specific. So bear with me since I have no idea of your tech level and will have to include a lot of detail.

I have no personal interest or association with any product that I may suggest.

How to Recharge a Dehumidifier


Do you need to recharge your dehumidifier? Here's what you need to know.

Dehumidifiers use cooling coils, similar to air conditioners. Those cooling coils use refrigerants, the same as air conditioners do.

If your dehumidifier stops removing moisture from the air but the motor and fan seem to be working fine, your dehumidifier may need to be recharged.

Let's repeat that a different way.

  • Is your dehumidifier's motor running?
  • Is the fan also working?
  • Is your air still too damp?

If so, you may need to recharge your dehumidifier.

That's where this gets interesting.

Legal, illegal and obsolete coolants

Older dehumidifiers use a coolant called R-22. That's being phased out and its use is strictly regulated, around the world.

In the old days, you could by an air conditioner recharging kit. Hook the hoses to the air conditioner or dehumidifier (or refrigerator) and follow the instructions. Easy!

Today, your dehumidifier may still use R-22. If so, due to strict environmental regulations, you'll need to check with an air conditioner repair service.

They may be able to help you, but they may not. It depends on whether they have any R-22, and whether they're authorized to recharge dehumidifiers with it. (Yes, they need a permit for this. Be sure they have one.)

Check your dehumidifier

A panel or sticker on it may tell you which coolant your dehumidifier uses. Or, the manufacturer's date may give you an idea. If the dehumidifier was made before 1995, it's likely to require R-22.

If you own a newer dehumidifier, it may use a more environmentally-friendly coolant. (If you bought your dehumidifier after January 2010, it's almost certain to use something other than R-22.)

New dehumidifiers usually run on R-410A. That's often called Puron.

Puron is one of the best alternatives to R-22. It's inexpensive. So far, it has fewer problems that some other "green" coolants. Puron still causes some ozone problems, because it's methane base. However, it's better than anything else you can buy now.

Puron (or R-410A) runs at a much higher pressure than R-22 did.

So...

You can't just replace your R-22 coolant with R-410A. The valves and gaskets may not hold, and - if your coolant leaks out - you're back to square one.

Generally, it's safer and cheaper to replace your dehumidifier with a new one that's already set up to use R-410A (Puron).

Frigidaire 70-Pint Dehumidifier.
I recommend only one dehumidifier, no matter what your needs. It can handle damp basements. It runs economically. You can set the humidity level you want, and it'll turn itself off when it reaches that level... no wasted electricity!

It's also one of the quietest dehumidifiers and it has top ratings and customer reviews at Amazon. (It's regularly on Amazon's "best sellers" list.)

May 22, 2012 | Whirlpool Dehumidifiers

1 Answer

Our dehumidifier is about 2 years old. It turns on and sounds fine, but it no longer condenses any moisture from the air. Does the refridgerant need rechargeing?


Hi,
There are many reasons why a dehumidifier willnot work or collect water.
Here is a tip that I wrote to help people to figure out what is going wrongwith their dehumidifier

Dehumidifier is running but no water is in bucket

heatman101

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Aug 13, 2011 | LG LHD45EL Dehumidifier

1 Answer

At this time every year I turn on my Fedders A7DH45B2A Dehumidifier in my finished basement. I turned it on the other day and it will not extract water. I have a humidity meter in one bedroom it is 67%. I...


Bob, the unit may not need to be recharged. I may simply be a matter of the humidity extraction level on the unit is set to high. Try lowering the extraction level to 35% or if your dehumidifier doesn't have a LED screen, set to maximum. In addition, be sure that the unit has at least a minimum of 12" clear air space all around the unit.

As far as recharging is concerned, it's like recharging the air conditioner on your car. But, in this case, your mechanic can't or won't recharge the dehumidifier. So before any recharging is done, I would like you to do this in home test.

Move the dehumidifier to the bathroom. Turn the shower on hot enough to generate steam. Do non turn on the bathroom's exhaust fan and close any open window(s) in the bathroom, Turn the dehumidifier ON and set the extraction level at 35%. As you exit the bathroom, close the door. Wait at least 15 to 20 minutes before returning to the bathroom. Ten turn the shower OFF and allow the unit to run an additional 5 minutes. Then check the water collection bucket for water. If you find any, the unit is working as it should. In which case, the humidity extraction level was originally set to high. If there are no signs of water, then the unit needs to be recharged with refrigerant. At that time, if there is a leak, it will be detected. As far as the cost of servicing and recharging is concerned, depending on where you live, it could be up to $100.00 or less.

Hope this helped you troubleshoot and solve the problem. Please let me know. Thanks.

Jun 04, 2011 | Fedders A7DH45B2A Dehumidifier

1 Answer

Does not extract moisture. Fan runs and air flows through.


the units low on refrigerant and needs a recharge,this happens a lot with these type of units

May 19, 2011 | DeLonghi DE500P Dehumidifier

1 Answer

It looks and sounds like it works good but it is not pulling any moisture out of the air. It will run for days and there will only be a little bit of water in the bucket?


the refrigerant r134a has leaked out,you need to have it recharged,this is normal for most de-humidifiers after 2 to3 years of use

May 13, 2011 | DeLonghi DE400 Dehumidifier

1 Answer

Air conditioners remove the moisture from the air, and so does a dehumidifier. Does running a dehumidifier make the air conditioner run less? Does running the small dehumidifier save energy in that the...


a dehumidifier is basically the same thing as an air conditioner but both coils (condenser and evaporator) are in the same unit meaning a dehumidifier exhaust warm air in the same room it is in. running a dehumidifier would make an air conditioner run more because of the warm exhaust, but you are correct, when you run an air conditioner it acts like a dehumidifier and dries the air. as far as saving energy it all depends on the size of the AC and dehumidifier and the size of the room. If you want warm dry air use a dehumidifier if you want cool dry air run the AC but not both.

May 18, 2010 | Dehumidifiers

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