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Can I have a DH649 recharged? - Winix Dehumidifiers

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Here is a tip that I wrote about how to add refrigerant to a air conditioner or cooling system

How to add Freon to a Air Conditioner or Refrigeration System


Posted on Aug 29, 2010


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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What is causing ice build up on the coil bottom left? Whirlpool model AD50GEUSW dehumidifier?

Ice buildup is most often caused by low freon. Is the unit 10 years old or more? Might need a recharge. Turn it off and let it thaw then back on. If it ices up again, it likely needs a recharge.

Jul 09, 2017 | Whirlpool Dehumidifiers

1 Answer

Have a dehumidifier, Delonghi DE500P. Unit operates but no water collecting in bucket.Level set to 35%. Can freon be added to recharge?

the short answer is yes , but id caution you on the need too first?

first check the basics:
bucket full lite not on (blinking)
filters clean ?
both fan and compressor inside running (sometimes the fan runs but the compressor does not?) listen carefull for them both?
if your unit needs recharged odds are it's not financial feasible to do so , first you have to fix cause of gas leaking out ? what ever that is ? then you need to add service ports and finally you need a gas charge , this would or could cost hundreds of dollars , a entire new unit is less 200 bucks unless you do all this work your self , but id tend to think if you had all the tools and knowledge to do that youd not of asked here in the first place

Jul 21, 2015 | Dehumidifiers

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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-

Jun 17, 2014 | Frigidaire FDF50S Dehumidifier

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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.


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.


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

How do I have the compressor recharged?

the unit does not require 'recharging' unless you've had a refrigerant leak - in which case you will need a qualified AC TECH to recharge it for you, after, he/she has found and repaired the leak.
But, as I said above, without a leak in the system you do not need to recharge it.

Aug 04, 2011 | Maytag M7DH45B2A 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

Maytag M7DH45B2A Dehumidifier can these be recharged

Yes, they can. But, rarely do they need it. In any event, It must be done my a professional.
What makes you think the compressor needs to recharged?

Jun 03, 2011 | Maytag M7DH45B2A Dehumidifier

1 Answer

Just replaced fan motor,and blade works fine,been running for 4 days,but no water collected,in container home homedry 660

These are somewhat related to cooling systems so the system may need a coolant recharge like any AC. Check your user guide to see if there is any mention of a need for recharging.

Oct 04, 2009 | Ebac HD880 Dehumidifier

2 Answers

Edison 40 Dehumidifier

Old post, but in case someone stumbles in here like i did, I need to point out that if an A/C needs to be recharged, then there has to be a leak somewhere, there is no use on recharging unless you find the place where is leaking.

Jun 01, 2007 | Edison 40 Pint Dehumidifier

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