Question about Goodman CKL42AR42 Air Conditioner

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Hello, my HVAC is constantly freezing, even after freon is added. I was told that I have a leak in the coils and need to chance the air handler - the outside unit is about 10 years old - air handler about 18 years old. I would like to get only the air handler for my R22 outside condensing unit. My question is if in the future can I use this same 3.5 ton air handler with a new 410 condensing unit once my outside unit needs to be replaced. In other words can a Goodman air handler be used first with an R22 condensing unit and later with a 410. Also is this OK with the warranty? Would appreciate if you could confirm ASAP

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I'm new at this and I can't tell how old the post is but I'll contribute anyway.
You probably have fixed the problem by now. I wonder what part of the system is freezing up. I don't have a lot of experience but I know you can get frost where there is a restriction in the freon. If the freon line filter near the outside unit has frost on the house side the filter is partially plugged. I have also seen fost on the evaporator (attic "A" coil) when there is a shortage of return air flow. You could have a plugged filter or colapsed return duct, or even an "A" coil with a lot of dust covering and plugging the fins. I guess restrictions in your room air supply registers could cause the problem too. Maybe you have most of the vents closed off to save energy. Just some possibilities.

Posted on Oct 31, 2012

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Hi,
No you can not use a R-410 air handler with a R-22 condenser unit...the exspansion devices are different as the properties of the refrigerants are enough different that they are not interchangable...
Really your only choice is to replace the whole unit as it sounds like the exspansion valve or the orfice is partially clogged and it makes you constantly freeze up....
There are some things you could do to make it work at reduced capacity but it is way beyond what I could tell you through a computer...

heatman101

Posted on Sep 08, 2010

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We have a 1997 Coleman pop up camper. We are having issues with AC. It blows out some cold air but not a lot and it keeps leaking water on the inside of the camper. I have called a repair man they said...


If you have some cooling, but not enough, then chances are that the system is low on freon. The only reason a system would need freon is because the freon leaked out. If the leak is not sealed before recharging with freon, the freon will eventually leak out again. Leak repairs are expensive so if it's a small leak it may be more cost effective to recharge the system every two or three years. Freon recharging is not a do-it-yourself job. Only people certified to handle refrigerant (freon) are allowed to recharge an air conditioning system. OR 1. Extremely dirty air filter restricting the airflow through the inside unit. 2. Extremely dirty (clogged) cooling coil restricting airflow AND IF IT IS LEAKING If you do not see ice build-up on the larger copper tubing (covered with a black, sponge insulation) when you run your system, then you probably have a clogged drain line. A clogged drain line is usually caused by algae build-up inside the drain line. And yes, there is something you can do to prevent this condition. Algae is a living plant and will grow in your drain line until it clogs the line. The air handler provides a cool, damp environment for development of molds and mildew and if left untreated these growths can spread into your ductwork. If only moderate to light buildup is present then there are chemical disinfectants specifically designed for use in air handlers that will kill the existing mold and mildew and control new growth. These disinfectants are safe and very effective and are applied by simply spraying into the filter intake and by placing "Algae Strips" directly in the drain pan. If the coil has mold or mildew present then it also should be treated. Make sure that the face of the cooling or evaporator coil is clean so that air can pass through freely. HOPE THIS HELPS :)

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Hi,
There are two things that cause freeze up's...

Low air flow...

Low freon...

First check the filters, the blower , and the air vents to make sure that the air handler unit can move enough air...not enough air across the coil, the coil gets too cold, ice forms....


The low freon problem will require professional assistance...
For the system to be low there needs to be a leak...the leak must be found and repaired or the fix will only be temporary...
To do this the system refrigerant must be recovered, the leak fixed and then the system vacuumed and recharged...

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Hello
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