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Not puuling humidity out

My new AC unit in my home is not pulling humidty out like it should.It froze up 1 time and need freone didnt find any leaks 1 week later not froze up but the humidty is high in the house and not feeling cool The unit is 1 year old

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To answer with any clarity I need to know is this a window type unit or central and what kind of thermostat do you have electronic display or no display just t knob pointer? Also I need to know what is running and what is not running when your trying to get it to dehum. I.E. Fan only Fan and compressor only Fan out side and compressor unknown if it is running...

And here is a real stickler, you said it has a leak and had to have a charge of refrigerant. What kind of refrigerant is it R22, R134A, R410A... And for sure was the evaporator coil still iced up when you decided it was low on charge or was it defrosted and room temperature?

All these questions have to be answered to get you steered into the correct area.

A low charge diagnosis for instance can be miss read if the evaporator is iced up or has any ice in or on it. A sticking thermostat, relay, causing the compressor to run on when it should be off, or air flow blocked or the fan motor on the evaporator cutting off when it should be on or a dirty filter or closed vent, or misplaced thermostat sensor could all lead to a freeze up of the inside coil as well as a few dozen other things other than low charge.

If these ideas give you an indication as to where to look or what to check futher please rate me as high as you can. If you need more information I need you to answer soem of the above questions with as much clarity as you can. And thanks for using fixya.

Posted on May 16, 2009


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1 Answer

Why isn't A/C working?

The AC unit on vehicles will not work if AC is not properly charged. Clutch will not engage. There is internal device that will not let the a/c start if under charged. System has to be evacuated and have fresh freon added to full capacity. Use leak stop and lubricants with the new AC freon.

Check all fuses/ relays for AC unit.

Use a freon gas sniffer/die tool to check for leaks.

Sep 19, 2015 | Jeep 2004 Grand Cherokee Laredo

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Recharged AC, blew cold for 1 day then heard hiss near driver tire and now no cold air.

Whenever you add Freon,you are suppose to leak test first.Your compressor is good,you have a leak somewhere.A good place to take it to is Midas,they changed my freon over from the old stuff to the new R-134a,they leak test it first,that is rule 1 when adding freon.

Jun 11, 2015 | 2000 Pontiac Grand Prix SE

1 Answer

Air conditioner no longer pulls water from the air. Humidity is 70. Portland , oregon.

If a dehumidifier or A/C does not get cold, it will not condense water out of the air, so just buy a new unit. A tech person would check the thermostat and freon pressure level.

Aug 19, 2014 | Dehumidifiers

1 Answer

After charging ac with 1&1/4 cans freon and disconnecting battery to reset comperssor now it clicks on& off no cool air what next?

My Jeep did the same thing, i had to first buy a little can of dye at AZ and run it through the system where you fill the freon. It will show you with the help of a UV light if there are any leaks in the AC pump, it will glow purple if it is leaking. Usually tho you can't just fill the AC w freon all the time, a mechanic will have to purge the AC system. I cannot remember the name of the unit but there is a canister that needs to be purged before just adding freon. It sounds like that is what's going on since the pump is engaging.

Jan 28, 2013 | 1998 Cadillac DeVille

1 Answer

The blower blows air thru vent near glass-defrost vent and side-in door near window only. The freon has leaked out. Repair man says ac controller needs replacement. is this diagnosis correct.

If all of the freon has leaked out yes you will most likely need a new unit. The car is at that age so that does make sense that it will go.
The best thing to say is if no cold air is coming out then yes you need a new AC unit.

Good luck.

May 08, 2011 | 1996 Buick Park Avenue

1 Answer

AC wont get cold

how dirty is the filter(s), also is the weather quite humid?if so it may be trying to stay ahead of the humidity,,did the TECH check for a pressure drop while he was there? and did he vacuum it down and nitrogen it and start from scratch? if it leaked down that fast it should have shown on the gauges when he performed the initial gauge test and w/o vacuuming it down,it could have moisture in the system and moisture will inhibit cooling

Jul 19, 2010 | Heating & Cooling

2 Answers

Coil froze up how do we recharge it

The only way to recharge an RV unit is to drill a small hole in the return line of the system and solder a schrader valve on the line. Once this is completed, you will need to pull a vacuum on the system for at least 12 hours, making sure there are no leaks. The only reason that your unit would need freon is because it has a developed a leak. If you can pinpoint the leak, then it may be able to be repaired and the system recharged. Careful of this however as it can get more expensive than a new upper unit costs.

Where you running the unit of low fan/cool mode when it froze up? This will often cause this to happen in the summer months due to the lack of fan speed at the condenser and the evaporator. Both fans are on the same motor.

Hope this helps.


Jul 02, 2009 | Dometic Rooftop RV Air Conditioner

1 Answer

Leaking evaporator home ac NEW Amana unit


Happy to assist you!

Why are you doing it?
You have a new warranty, call service and let them correct it!

You need to call service !!!!!!!!!!!!!

Aug 29, 2008 | Amana Heating & Cooling

1 Answer

Ac turning on and off

How did they check the freon in the home? You can feel the front(evaporator coil)coil on all four sides. Are you sure the motor is running fast enough? If the four corners do not feel cold in about 5 minutes or so, there is a compressor problem, Capillary tube blockage, moisture in the system or you are low of freon. Good Luck

Jun 15, 2007 | Haier Energy Star ESA3183 Air Conditioner

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