Question about Carrier 38CKC030 Air Conditioner

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Tube running from AC unit to the house is completely encased in ice. Does this mean the unit is bad ? Or, does this mean there is a freon leak in the tubing ? And, is it cheaper to replace to unit or try to find the leak at $150 / hour ?

Posted by greg_uhl on

  • Hannah Schroeder
    Hannah Schroeder Dec 16, 2017

    It's scary that the tube between the unit and the house is completely frozen. My tube is fine, but the unit itself is frozen, even though my house is starting to get hotter. I'm not sure what's wrong, but hopefully, an HVAC repair service will be able to fix it. Maybe one could help you too. http://www.socoairconditioning.com

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Anonymous

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We had a big old iceball on the connecting point between hose & external a/c unit this past weekend. we were getting no air - hot cold or otherwise. i changed filters and turned thermostat off, let it sit, noticed major amounts of water dripping out of interior unit. Let it sit several hours (w/lots of towels) turned fan on about 5-6 hours later which was blowing air finally, then after 30 minutes of fan running, turned on a/c - worked like a charm. Until 24 hours later when the thermostat went BLANK! now we have nothing going on, and 98 degrees forecast for tomorrow!

Posted on Jun 09, 2010

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The frosted line should be encased in neoprene insulation. This can be obtained from a hardware store and cal be applied easily by yourself. Frosting can be a function of low freon, but shows also in peak usage and high humidity. If the cooling in your home has diminished,you likely have a leak. Look for an oily spot on your equipment freon lines and coils, inside and out. This will indicate where the leak is likely located. From the data plate, determine the size (BTU tons) of your unit, and look on-line for an approximate replacement cost. I had to do the same calculation this year. Call your local installer and have them come out and give you an estimate for a repair, including the cost of the freon (you may want several estimates). If the unit is older and already has a history of breaking down you may elect to replace it outright. My rule of thumb is to replace the unit after 10 -15 years of service if the cost of fixing the unit is greater than half the cost of a new one. I lean more towards earlier replacement if there is already a history of repairs on the unit. Note: if you have a leak on the outside unit, you do not have to replace the inside unit and vise versa. However, the older the unit, the more reasonable to replace the entire system to a modern, reliable system with a warranty. Hope this was helpful.
Regards, --WoobieDog--

Posted on Jul 07, 2009

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This could be several reasons Low charge.... could also be dirty Evap. Coil no air flow check the filter if its clogged change it and turn off AC leave Fan in On position for a while then turn the unit back to Cool and try again.

Posted on Jul 07, 2009

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Would suggest replacing tubing from unit outside to unit inside(condensor,evaporator in order) You need to make sure that the leak is in those two lines and not in the evaporator coil or condesor coil. This can be checked by an a/c tech for around 75.00. They will isolate the interior coil, i.e. evaporator coil, and then the condensor coil if no leaks then replace the tubing.

Posted on Jul 07, 2009

steve

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You either have a refrigerant leak or a dirty inside coil or a slow running inside blower motor.
Set the thermostat for heat and run it until all the ice is thawed. Then check the incoming air side of the coil for lint and dirt. Check the fan motor for proper speed. If you have service gauges your low side pressure should be approximately 68 psi. If lower you have a leak.

Posted on Jul 07, 2009

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