Question about Carrier 38CKC042 Air Conditioner

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  • Anonymous May 21, 2008

    line into house is frozen with ice. The air is pushing out but not cooling it.
    model 38TRA

  • dixiedown Jun 02, 2008

    line into house is frozen. but we are getting air in the house. should i be worried about the line freezing up outside?

  • downer Jul 07, 2008

    My small dehumidifier runs continually and the coils freeze.



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Change filter,Clean the coil in the inside unit,and make sure the return vents are free of obstruction.If you are doing this yourself,Make sure to diconnect the power to the unit first.

Posted on Jan 10, 2009

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This is caused by air restrition check filter ,dirty coils,return vent blocked, cover of air handler,or duct not fully sealed at air handler

Posted on Jan 10, 2009


I had similar problem once. A spider got fried onto the on/off contact switch and kept the unit from turning off. Solution: Cleaned switch.

Posted on Feb 18, 2008

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Posted on Dec 15, 2007

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Hi, Sounds like its low on refrigerant. Could also be restricted air flow inside. Turn the AC off and the inside fan on for about 3-4 hours to thaw out the evaporator. Replace the inside air filter. If you can see the side of the evaporator that the air goes into, check to see if it has a blanket of fuzz on it. If so, It can be cleaned with a credit card while its wet by scraping along with the fins. Turn the AC back on and let it run for about 20 minutes. The large line outside should sweat all the way to the compressor but the compressor should stay mostly dry. There may not be anything wrong with you unit. When it is cooler at night they will sometimes freeze if the thermostat is turned down too low during the night and the air restriction will not let it thaw during the day. Hope this helps. kstfas

Posted on Sep 19, 2007

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1 Answer

Freezer not freezing

Hi Kenneth, I am happy to assist you!

If your freezer is not cooling, it could have a floating restriction in the lines or something more complicated like an issue with the sealed system that only a professional can repair. This can include the compressor not working correcting, the evaporator fan not turning, or even coolant in the lines with incorrect levels to properly cool. Do you hear the compressor running? If the compressor is running, humming or even a little warm then that is typically normal. I suggest cleaning the unit out including the coils you can reach (typically located underneath or behind the unit). Also try checking and see if the door seal is bad; place a dollar bill between the body of the freezer and the door. Now close the door. The dollar bill should stay in place and pull out with a small amount of resistance. If the dollar bills falls out when placed between the gasket and cabinet double check to see if the door is being blocked by anything stopping it from closing. If any of these suggestions prove to be ineffective, connect with a professional to accurately pinpoint any potentially more serious issues.

Best of luck!

Oct 13, 2013 | Frigidaire 14.1 cu. ft. Upright Freezer...

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Kelvinator fridge compressor running constantly, but freezer section barely freezing


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I have got a gree 60000btu under ceiling unit, the suction pipe is icing up back to compressor its running on 360kPa suction and if I top up the refrigerant it does not change

major causes of evap.freezing dirty coil,evap fan motor or capacitor low on freon.moisture in system. first turn off cooling run fan to completely thaw unit. if possible clean coils and blower wheel. any unit running efficiently the evap coil will be at freezing or below. the key is to have enough airflow across the coil to remove the heat and humidity.its very easy to introduce air and moisture into the system. i have seen alot of techs. over the years make the same mistakes over and over again. when hooking up guages they dont purge the lines back; worst case is only to evacuate freon pull a vacume and recharge

May 22, 2012 | Heating & Cooling

2 Answers

My A/C freezing its coils, while the fans keep running. The AC unit (outside) keep running and never stop caused the coils freezing. It doesn't matter when I turn off or set it to Cool position, the...

Sounds like the contactor in the condensing unit is stuck. That is why it will not turn off when the thermostat is satisfied. If the inside air handler is not blowing and the outside condensing unit is running, then this will cause the inside coils to freeze up rather quickly.
The contactor is located in the outside condensing uni in the electrical compartment.
If it is sticking it will need to be replaced.

Sep 07, 2011 | Heating & Cooling

1 Answer

I have a fridge/freezer APM 6823, the freezer isn't freezing

There is a small fan that draws air across the condenser coils and evaporates water that accumulates from the self-defrost cycle.

Be sure the condenser coils (on the bottom of the refrigerator) are clean and that the small fan is working. The water is most likely from the self-defrost cycle that is not evaporating properly.

I have a strong suspicion that the fan is defective. Remove the back of the unit and see if it is running. And I can't overstate the importance of cleaning the coils. Dirty coils are the #1 cause of refrigerator inefficiency something as simple as cleaning them can make a world of difference in the efficiency of the unit.

Aug 21, 2009 | Refrigerators

1 Answer

My air conditioner lines keep freezing up.

You have a blockabe in the distributor tubing which will need a professional to sort out.

Jun 25, 2009 | Heating & Cooling

1 Answer

Lines freeze in central air unit

If you are not certified to do H V A C then I highly recommend that you call in the pro's. However there is something you as a homeowner can do. Start by checking the air filter. if it is too dirty it will slow the air flow across the coils and cause the coils ti ice. The line freezing is a sign that your coils are beginning to ice or already have. This is also true if the coils are dirty. You can check this by removing the air filter and using a flashlight to look up inside of the air handler. If they are dirty then you can clean them with a solution of water, mild dish detergent and a soft bristle brush. Be sure to rinse them thuroly. If this does not fix the freezing problem then you may very well have a small leak and need to have some refrigerant added. hope this helps. Good luck.

May 11, 2009 | Heating & Cooling

1 Answer

Ice on lines, is there too much freon?

maybe,it can also be from real dirty condenser coils under the frig.clean your coils and see if this helps,also has freon ever been added to the frig.?

Apr 25, 2009 | Refrigerators

1 Answer

Ref non-freezing

Is the compressor running? Is the coils near the compressor clean and is the fan that blows on the coils running? Does it get cold at all or is it room temp? One thing to do is to turn it on after leaving it unplugged for and hour. First access the compressor and make sure you can feel the copper lines coming out of it. Some have 4 plus a service pigtail. On the ones with 4 will have two lines the same size that circulate oil for cooling the compressor running to a small set of coils. Pay attention to the larger and smaller lines and notice what temperature they feel like before you plug it back in. Once it is plugged in and if the compressor is running less than a minute the small line should get hot, up to 140 degrees F. Check it soon as after a few minutes it can burn you...The largest of the lines is the low side or suction side and it should be very noticeably cooler than room temp and continue to get colder the longer it has been running. If both these things happen, the charge should be adequate, and the compressor is working. I would then check to see if air is circulating in the unit..Are all the fans running when the unit is on? Most common is for the defrost circuit to fail causing the unit to build up ice behind the liner blocking air flow. Unplugging the unit and leaving the doors open over night will let it thaw. Put several towels around the unit incase this is the problem as there will probably have more water come out than the small pan under neath the unit can handle. Once all the water stops dripping out, plug it back in and see if it works correctly. If so it will probably freeze up again and need to be defrosted again. If so the defrost circuit has failed....either the thermostat in that circuit, the heater coils or the defrost timer switch. Switch very common, coils next and the high temp sensor last.... let me know what you find...

Feb 15, 2008 | Refrigerators

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