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Manuals Pulled vac. on unit and charged w/ 10.6 OZ of R22, Which is what the label calls for. Don't seem to be working 100%.

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  • Don Stamper
    Don Stamper Apr 22, 2014

    What should the press. reading for a correct charged system w/ R22?

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Unit was charged w/ 10.6 OZ of R22 and don't seem to be working very good?


About 61 PSIG or 33 Degrees F. If you look at the gauge on your refrigeration manifold it will give you the numbers. What is Max, it changes with temperature and humidity and without very involved controls the absolute max will not be realized over the normal ambient operating range. Good Luck

Apr 20, 2014 | Fedders A7DH45B2A Dehumidifier

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I see it has been suggested to perform replacement of the control board if the...


If you have a dehumidifier that is not producing any water then you are wondering what you need to do to get this thing to work for you. In some cases you may be able to do something and in other situations there may be nothing that you can do.

If you do not hear the compressor running and the unit says that the humidity in the room is higher then the setting, then you have a problem with your dehumidifier.

A few things that can cause this are:

The circuit board relay has gone bad…replacement of this board will often cost more then a new unit. This also is a very common problem with many dehumidification units.

The compressor has failed…if you hear a buzz for a few seconds, every few minutes, then you have a bad compressor or at least bad start components on the compressor. Either way it again is a costly repair.

If the compressor is running and the coils are not getting cold then you have a refrigeration system leak. Recharging or fixing these units is very difficult and is another costly venture compared to the price of a new dehumidifier.

If the compressor is running but the fan is not, this also will cause low water production and continual freezing of the coil.

If the compressor and the fan are running but the coil is totally blocked then you will get no water production. Air needs to be continually moved over the cold coil to get the water out of the air.

If nothing is running, then you may also have a control board failure. Or the humidity sensor or humidistat has gone bad which tells the machine to run. If the sensor says that the humidity is low enough then it will never run.

Also if nothing is running check the float switch or the bucket switch. Many of these switches are very touchy and if you do not have the bucket in place just exactly right it will not trip the switch to allow the unit to run. These switches often are more fragile then they should be and break easily. The good thing is that when available they are easy to replace and relatively inexpensive.

There are some parts available for a few brands, but with the prices for most of the parts that you can replace running anywhere from 40.00 – 80.00 dollars, replacement parts with labor to install them, makes a repair more then the few hundred dollar cost of many of these dehumidifiers.

As you can see there are quite a few things that can cause your dehumidifier not to work. Systematically go through the list and eliminate things to get to the bottom of the issue causing your problem and then decide if it is worth spending the money to try to fix the old unit. Only you can make that decision.

http://www.fixya.com/support/r4662033-dehumidifier_freezing_up_not_working

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

http://www.fixya.com/support/r4688381-dehumidifier_problem_shows_bucket_full

on Aug 18, 2011 | Dehumidifiers

1 Answer

I have a Haier dehumidifier Mod 39R131F that is two years with 100 total hours that does not work. The compressor is humming normal but the in and out R22 copper lines remain at room temp. Under the...


Many of these consumer units use low grade copper for their refrigeration connections. The oil is a sure fire indicator of your seemingly correct diagnosis. Unless you have the proper refrigeration tools to repair and recharge the unit it may not be cost effective to try for a repair, as if this is the issue another leak is likely to occur. Many of these units come with 5 year compressor warranties though, so a quick check to make sure the leak is in the refrigerant piping and not on the compressor itself may be worthwhile. If your warranty has not run out it could be beneficial to find the exact source of the leak.

Sep 25, 2011 | Dehumidifiers

1 Answer

How to fill with gas my de longhi type DH 40 pints. It works with R 22


You shouldn't be using R22 anymore as it is being phased out and is bad for the environment. If it is not working, you might want to call in a pro to do the job. They'll have to hook up the dehumidifier to a manifold to essentially **** all the R22 out, ensure that there are no leaks, and replace it with a R22 substitute. It's going to take a few hours, so be prepared to pay $$$. The alternative is to bring it to a municipal recycling center or whoever that will accept it and buy a new one. You can't just throw it away.

Aug 10, 2011 | DeLonghi DE40P Dehumidifier

1 Answer

I have H. Bay model HB40F dehumidifier. It does not seem to ever actually start the compressor. There is a plastic box on the side of the compressor that contains a couple of coily looking things. It...


It is probably the start device(the coil looking things), as long as you don't hear the compressor humming. A loud hum is a lock compressor and the cost would be far greater than a new unit.

Jun 17, 2011 | Soleus Dehumidifiers

1 Answer

Kenmore dehumidifier will not pull the humidity out of the air. Repairman said that the evaporator has a leak. Is there a seal material I can put into the system? How many PSI should the R22 be when...


You must be qualified and licensed to work on a sealed system with R22 And it's not the PSI that matters. If the evaporator is leaking, get a new dehumidifier.

Dec 29, 2009 | Kenmore 54501 Dehumidifier

1 Answer

How do you charge the maytag humidifier w/ r22


you cant change to a different gas without changing the compressor oil...they have different properties that dont mix with other gasses... in some cases the compressor also needs changing

Mar 30, 2009 | Maytag M3DH30B2A Dehumidifier

1 Answer

Stopped Running - Control Panel CH 01


All, I had this same problem as well. I called the LG Support Line and they told me the unit needed to be serviced. I went through the motions of getting the service providers and what have you, but I wasn't going to go through with it because the closes service provider was a 45 minute drive. I posted how disappointed I was because I had only had the unit for a year, but could not find my earlier post.

Anyay, I am glad I went through the motions, because a few days later LG called and told me they would be shipping me a refurbished replacement. Wow. That was a treat. They shipped me a refurbished unit and had me send the old one back. I did not have to pay a dime. The sent me the Fedex shipping label via email and I called Fedex and they came by and picked it up.

I cannot remember if I had registered the unit when I initially purchased it. Sometimes I won't do that because it seems only to serve as a license to sell me stuff. They took down all my contact information and sent me the unit so I don't know. I would simply encourage everyone with the CH 01 error code to give LG a call via the support number from their website at lgappliances.com. Good luck!

Jul 22, 2008 | LG Dehumidifiers

2 Answers

Icing damage


You need to have the r22 charged... As stated above, if its low on r22 then it will ice up... no dehumidifier should ice up.... call a repair guy or better yet, buy another one... good luck.

Dec 04, 2006 | Maytag M7DH65B2A Dehumidifier

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