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Ice build up on ac coil/piping? - Air Conditioners

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Ice on the coil is from lack of air flow or low on refrigerant ck the filter first dan

Posted on Jul 17, 2008

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How we repair LG ac showing C1


try switch the unit off till ice melts and try running the unit again after. if the ice is till coming back check the filters are clean and outside coil clean. sounds like a restriction in piping,possibly a blockage.
c1 err caused by the indoor pipe sensor being out of spec, possibly due to the ice buildup.

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Why does it work for a few hours, then shut off?


Sounds like you may have ice build up on the coil. This will cause the refrigerant pressures in the AC to go out of desired range and cause the unit to shut down. Ice build up can be caused by a dirty filter or blocked coils in the front of the AC or a fan not running up to speed. There could be another problem with the AC refrigerant charge, but normally the homeowner can not fix that. If the unit shuts down, it will not start again until the pressures equalize.

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1 Answer

Air is not blowing cold ice on coils


Air conditioning is all about the proper airflow across the condenser and evaporator coil (coil panel). Be sure your filters are clean and there are not any obstructions such as a dirty condenser coil. Also check all tubing and fitting connections for signs of oil which would indicate a refrigerant leak and has now caused the AC to be insufficiently charged.This would cause ice build-up on the evaporator (coil panel) and the out-put of only 70 degrees.

May 31, 2012 | Frigidaire FAS156N1A Air Conditioner

1 Answer

Indoor ac coils have ice build up and not cooling the house. can i melt it away with a hair dryer?


I have found that hot water cuts the ice better, my question to you, is why is the coil ice up?
Setting the temp to low below 72 degrees, a dirty air filter or coil, closed vents, I always have to ask is the outdoor coil clean?

Jul 12, 2011 | Air Conditioners

1 Answer

Why does my one pipe freeze when I run the ac and does not seem to cool very well


If the return line is freezing, as you describe, it typically means that you aren't getting enough air across the expansion coil, causing a large block of ice to build up inside.
Once that happens, you'll always get ice on the return line.
Try cleaning the filter or whatever the AC uses to keep the air clean.

Feb 25, 2011 | Samsung Air Conditioners

2 Answers

Ice is forming on coil fins


Either your coil is dirty or filter is dirty. Worst case your low on freon which would make a coil freeze.But freon doesn't evaporate if your low there must be a slow leak.

May 19, 2010 | LG Heat cool Window Air Conditioner

1 Answer

Ac unit goes off and on repeatedly- there has also been a fan of some sort running in the attic


check to see if the condensor coil out side is dirty if it is clean it also check for ice build up on the pipes out side for frost or ice be fore it shuts off one last thing feel the big pipe out side is it cold when running check this for me and give me some answers jason

Apr 03, 2010 | Goodman Air Conditioners

1 Answer

Air Conditioning Unit is leaking badly, has mold and ice.


soundls like the condensate drain is clogged and coil is dirty. look for a plastic pipe inlet where water would flow to.. you may be able to clear it by blowing it out with compressed air. you can also pour bleach into it to address the mold problem. if the coil is icing up it is because it is dirty. to verify this, let the unit run in ac mode for about an hour and check to see if you have air flow from the vents. if you do not, then the cooling coil is covered in ice, thus blocking air flow. you should have a qualified ac person clean the coil and check the refrigerant charge on the unit. one thing to consider, change your ac filter often, at least once a month in hot weather.

Sep 14, 2008 | Intertherm Air Conditioners

1 Answer

I have a Kenmore model # phjk048-1 heating and AC unit with iced up coils.


Test run the unit, if still icing coil is present it means that the unit is under charge, need to add refrigerant but first be sure that no leaking pipe so leak test the piping.

Mar 18, 2008 | Goodman PHKJ048-1 Air Conditioner

1 Answer

Ice or frost on the inside coils of the ac unit


Reduced or no airflow, Evaporator may be dirty. Low on freon.

Jul 31, 2007 | GE AJCQ08ACB Air Conditioner

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