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Problem with frozen coil - Carrier 38CKC030 Air Conditioner

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Hello, the evaporator will freeze from either low airflow or a low refrigerant charge. Check the air filter, blower whell to make sure it is clean and air is movimg freely. If the unit is clean and filter is clean then the unit is low on refrigerant due to a leak and will need to be rechaged.

Posted on Aug 08, 2011


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Samsung RF4287HARS not cooling and I cannot feel air blowing at all in either the fridge or freezer compartments Evaporator and fan at the bottom are running and unplugging and resetting does not bring up...

One possible senerio that could cause this is the coils are frozen up. If coils are frozen, no air can blow through the coils into either the freezer or refer section. This is caused bya failure of the defrost timer. (Don't know where it's located on yours but on an old one I owned, it was under the unit (accessible by removing a front cover) at the front. If the timer (or defrost coils) are not working, frost continues to build until te coil is frozen solid. This would oresent itself as a slow failure to cool, that is, each day (over 3-4 days) the refer section will get warmer.

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Make sure the freezer fan motor is running. Remove the rear panel in the freezer and check for frozen coils. If coils are frozen replace the defrost heater and thermostat.
Check the air vents to the fresh food section,are they frozen closed?

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1 Answer

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If the coil was frozen over it tells me there is a different problem. If the coil is frozen over try this. turn the circulating fan to the on position and the sir conditioning to off . Let it run this way for 1-2 hours to melt the ice and re-establish the air circulation. Then turn the a/c back to the cool mode and see how it performs.

Lower temperatures during evening and night conditions can cause coils to freeze over. Running you A/C with the fan in the on position generally takes care of this problem when you are cooling.

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all of the above the heater is on the coil you will seethe wires the therm. is on the top of coils timer could be at lower back of refrig.

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