Question about LG LS-K1830CL Cool Mini Split Air Conditioner

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Good day: The unit has a ice buildup on the coils. How do I prevent this from happening? Thank-You

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Gas Pressure is low in your system.
Recharge it.


And Give remarks if that works.
Goodluck :)

Posted on Apr 25, 2011

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Posted on Jan 02, 2017

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Danby DWC2121BLS dual commpartment wine cooler is cooling normally but after 2 days aprox the temperature increase and beeping and flashing hi


If evaporator starts to freeze up the ice accumulated serves as an insulator and the temps go up. If you turn it off and let ice buildup melt the unit will work fine again until it refreezes.

Check if unit has a device to prevent ice build up. If so, it is not working. If warm moist air is entering the area of evaporator coil, that could also be causing the buildup.

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AC works for about 300 miles then stops and blows hot air. New AC compressor and freon charge. After sitting for a while it will again blow cold.


I think you have a similar problem to mine. At highway speeds is when it happens. And it is not blazing hot? Right?
Your evaporator is freezing up - as this happens the ice surrounding it prevents the flow of air over the evaporator coils and the result is warm air coming out of the registers. If I turn off the AC for about ten minutes and let unit melt the cold air comes back. This does not occur in stop and go driving.
I combat it by either running the fan at a higher than normal setting to increase air flow over the evaporator and then turning off when it gets too cold, OR using the air control to allow warmer outside air to enter into unit at highway speeds to prevent freezing up.
Newer cars have more sophisticated sensors and controls to prevent this but some older vehicles are subject to this anomaly.
Since it works fine under normal conditions I have not messed around with the freon level in system. If you release a tad of refrigerant the low pressure switch will shut off the compressor sooner and help minimize ice buildup. Good luck.

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Amana ASD2620HRB Side-by-Side freezer running, but not freezing. What could cause this?


What is running? The important motor is the compressor - the one that works with the refrigerant to supply cooling. If it is not running you can check the start relay/capacitor. If they are good, make sure that electricity is reaching the motor windings. If the thermostat stays open, the compressor will not be activated.
If compressor is running and if there is ice buildup on the evaporator behind the back panel, then the self defrost mechanism is not working - could be you have an open heater coil. If you completely defrost the refrig for a day and then plug back in, if it works fine, then it is definitely ice buildup which serves as an insulator and prevents cold air from reaching the refrigerator portion.

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1 Answer

Not freezing enough


You might have ice building up on your evaporator coil. That ice serves as an insulator and prevents the internal freezer temps from going down to design parameters. The ice buildup is caused by the defrost mechanism not working - check the timer or the defrost heating element.

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Samsung RB195BSBB bottom freezer not cooling


If the ice buildup was by the pipe just going into the evaporator in the freezer compartment and the suction line going into the compressor is warm to the touch and not cold and/or sweating you are low on freon.

If the entire evaporator was buried in ice, the ice covering is also serving as an insulator and preventing internal temps from going down any further. There is a problem with the self defrosting mechanism which is designed to prevent the ice buildup. Could be either the defrost timer, defrost thermostat or the defrost heating element. Hope that it is just the heater element. If you have an electronic module for the rest you are in for unpleasant surprise to replace the unit. Proprietary parts mucho expensive plus labor.

Until you fix it, just let the unit manually defrost (U can use a hair dryer to speed it up) and turn it back on again. It will work fine till the ice builds back up. Keep opening and closing of freezer compartment to minimum to minimize moisture laden air that enters compartment.

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2 Answers

Defrost not working heavy ice build up around coils


Hi

Frost is a natural occurrence on the evaporator coils in the freezer compartment of your refrigerator. To prevent frost buildup, a self-defrosting refrigerator warms the coils using a defrost heater several times each day to melt away the frost. This frost melts into water and flows out of the compartment through the drain. If any part of the defrost system is not working properly, the result can be heavy frost buildup that may affect the cooling capacity of the refrigerator.

The defrost timer is a mechanism that tells the defroster how long to run to melt the frost. The limit switch measures the temperature in the freezer and helps to maintain it, while the heater is the key element that melts the frost. Any one of these components could need replacement at a given time, which will result in this over-frosting.
Also check this bellow link:-

http://www.ehow.com/how_4504020_test-refrigerator-defrost-timer.html

Please get back to us if you have further query else please accept the suggestion.

Thank you for contacting fixya.com

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1 Answer

Ice buildup, not cooling well


The ice build up on the cooling coils prevents you fridge from cooling properly. You need to unplug it and allow the ice to melt. When the coils are free of ice, the fridge should work better. Hope this helps you.

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Fan notblowing


I apologize if I would get the solution wrong, but based on my interpretation of the problem, you may want to look at the back of the freezer and have the coils checked for ice buildup. If there is ice formation have the unit turned of and let the ice melt. Clean the coil while at it. Check the wires of the fan if it had gone loose, if not you may have to replace it. The thermistor may have been frozen solid or the ice formation may prevent the cool air to cool the entire unit. If having the ice removed does not solve it, have the thermistor checked and if this does not solve the issue you may have the freon checked out,

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I just turned on my ac for the first time this year. I found leaking on my carpet. I had to change my filter and found ice on my pipes. also the area around the unit was damp. Did i fix the problem by...


The ice buildup comes from low refrigerant or poor airflow.
Is your indoor fan runnig OK?
Are your evaporator coils clean of dust and dirt?
If fan is good and coils are clean, call a service tech to check your refrigerant charge.

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1 Answer

Fridgedaire Elite frost proof fridge part not cooling, Freezer sems fine


If the frozen side is colder than normal and some extra frost is forming where the fan blows,and there is ice in the bottom of freezer compartment, and the cool side is not cool enough, their is a good possability the defrosting unit is not removing all the frost and ice . the defrosting unit has a timer (usually near thermostat) that turns off the cooling fan and compressor and turns on a small heater around the evaporator ( about 20 minutes every 2 days) (evaporaror is cold heat exchanger coil inside the back wall behind a cover near the recirculating fan0, the fan circulates air to both compartments through two small openings, if these openeing are closed by ice buildup cool air can not circulate to the cool side. cure 1. remove all food and leave fridge off for 24 hours with doors open (take precautions to ensure children can't get locked in side and suffocate, if you get a qt of water in bottom of unit (may leak on floor) ice buildup that the defrost heater can not remove melted and was your problem . turn frig on replace food on unit. cure 2. turn frig off, remove food from both sides, remove shelves that block access to evaporator, remove cover over evaporator if you see the evaporator coils free of ice look at openings (2) to other side, one may be blocked with ice the other with frost, carefully melt ice with hair dryer.
If the evaporator coil is solid ice heater or timer or fan has failed. good luck

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