Question about Goodman CLQ36AR49 Air Conditioner

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I noticed this morning my a/c unit did ot have the air flow through the return it normally has.I opened up front cover and found ice on all of my coils in the inside unit.What causes this.Thanks

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Could be low on freon or could be dirty coils turn it on heat and melt it to clear the ice

Posted on Dec 27, 2008

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1 Answer

Why is my brisk air duo therm rv ac freezing up on the inside.


Where you see frost all the time, wait for unit to thaw and start cooling again and carefully slide hand up in that hole and see if you can feel cool air leaking in from divider that separates cool and return air, that will cause freeze-ups as well. Use foil tape if necessary to stop any cool air coming in to return air from around divider. Also, if you have any diffusers closed, (on ducted system in ceiling) or partially closed, open them all up full flow. If you restrict the cold air from coming out too much, it can also cause freeze up. One more thing, take cover off where cool air box is and double check that something isn't restricting the flow of cold in to the duct work if it has ducted system.

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Ac icing up


Two things cause a unit to ice up restricted air flow over the evaporator coil (it's the one that ices up) Can be a dirty filter or the coil may be dirty or the return air vent may be blocked. Other cause is low freon.

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The blower is working but no cold air is coming out of the vents. i also noticed that the cooling pipes in the unit itself have frost or ice build up on them. Any ideas???


Ice on the copper lines mean that the system is either under/over charged, or the indoor coil is dirty and will have to be cleaned/dirty filters or restricted air flow across indoor coil. Charging the system with refrigerant will have to be done by a technician. You can check the filters in the return yourself and you can check the coil if you have the appropriate tools. You will need to remove the front panel of the indoor coil to access it. If it is an upflow system, the small cover on the coil itself will also have to be removed which can be tricky sometimes, once you remove this panel, you will be able to see how dirty it is. If you have a downflow unit, you will be able to see if the coil is dirty when you take the panel off the coil box. One way to check this is to feel your vents and see if a good amount of air is still coming out. Doing this yourself will save you a lot of money. Hope this steers you in the right direction and good luck!

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1 Answer

Water is dripping from the front of the unit.


have the unit charge checked it could be low if not low then the coils might be restricted either by dirt or finns dammaged or check for any kind of air flow restriction

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RV AC unit won't cool, blows chuncks of ice


It's most likely an airflow problem, you say you had the vents closed? Icing up is normally caused by lack of load (air flow) or loss of refrigerant charge. Make sure all your vents are open to allow for as much airflow as possible and that your filter is clean. Some units do not work well on low airflow setting when the outdoor temps cool down at night.

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1 Answer

Ice in the unit


Welcome to fixya.
I'm Huuum and happy to assist you,

You said, Left house for a while with unit running and when I returned little or no air was emmiited from unit, and when I removed back cover, solid sheet of ice!


Sounds like you have a coolant leak or the thermostat is malfunctioning.
You need to have the freon checked first to see it is not low.
This one reason that will make it freeze up .
let me know how much freon it took.

Please remember to leave a rating before you go!
Thank you

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1 Answer

Samsung window air conditioner model aw05ncm7 icing up not cooling


After I opened the front of the unit and discovered it full of ice, I left the unit off until it defrosted, so to speak, after the ice had melted, I turned the unit back on to see what happened. It is working fine now, I'm not sure why it iced up, if this is normal or not, but after it melted the problem was solved.

Jul 22, 2008 | Air Conditioners

4 Answers

Goodman CKL60-1L


Four things cause icing up:
( 1 ) Is your filter clean? dirty filter blocks air flow causing iceing up. replace filter
( 2 ) Do you hear the Indoor fan running? If the fans not running the unit ices up. Check Capacitor to fan if good.
Bad fan motor... replace fan motor and cap. If both good
( 3 ) Check Air Handler evap coil if dirty and or clogged, restricts air flow causing unit to ice up. Use toilet brush to clean.
This is always a big possibility if you have pets.
( 4 ) If the above are not present then you are low on refrigerant.
Low refrigerant will cause icing up because the gas does not flash properly. This will require a service tech.
refrigerant leaks can be as simple as a loose cap on the king valve, leaking schrader core, to coil leak.
Have the service tech show you the leak. If it is in a copper line it can be fixed. If the system is over 10 years old limit the amount you want to spend. 10 years is the standard life expectantcy anymore. Good luck

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