Outside Unit Has Ice

by Consumer

My Carrier central ac is not reaching the temp set on the thermostat. Cool air is blowing all the time. There is ice on the unit outside see picture.


there is ice on a line coming from the unit outside that goes to the house

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Jul 02, 2015
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Try cleaning NEW
by: Anonymous

Most of the time when someone says there is "airflow constrition" it means that it's time to do the deep cleaning within your AC unit that means past the filter. The vents behind the filter need cleaning too! Every season check the coils for dust and dirt built up clean with AC evaporating spray for coils.

Apr 29, 2013
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outside unit has ice NEW
by: Anonymous

noticed it was 79 degrees in the house although thermostat was set at 72. saw the unit was running but cold air not coming out of the vents. checked the unit outside and saw ice on the pipe leading into the house. turned off the AC for 2 hours, ice melted. turned unit back on and AC works fine.

Aug 08, 2011
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havin the same problem
by: kimmie

I am having the same problem with ice on my unit the coil has been cleaned freon has been put in it and still the same thing you cn set the thermostat on 72 in like 3 hours the degree in the house will be 78...sound fimiler to anyone...

Aug 07, 2011
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Icing somewhere in Central ac
by: Dadan

Hey, Diane

You didn’t tell us how fast it built the ice on the outside unit..2 hr or less?? Have someone check the ductwork for restriction airflow. You icing problem can be with improper function of indoor motor or you just have airflow restriction somewhere. It could be anything without looking at it.

Aug 06, 2011
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A.C. freeze
by: diane

my elderly mother's A.C. did the same thing. She doesn't have a variable speed fan. The fan works but it isn't blowing much air through the vents. does anyone know why that would be?

Jul 20, 2011
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outside unit has ice
by: Podo

I had the same problem on mine last summer, My unit was newly installed. After investigation I found out that the fan on my unit located inside the furnace was set at low speed giving no enough air passing thru the evaporator causing ice to build up from unit outside the house up to the evaporator coil.Changing the fan speed to higher setting solved the problem.

Jul 19, 2010
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Same Problem
by: Anonymous

I have the same thing happening did you get any answers?

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