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Re: stops for no reason when on cool
I would say by the sounds of it the unit is short of gas, the compressor is getting hot and going out on thermal overload. I would think that it would be best to call a refrigeration tech out. As I can not help to much with out looking at it.
If there is anything else I can help with or any other questions please let me know
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There is already a hole just remove the ac unit from the window,and it`s shell,take it outside and use a water hose to clean it out,and remove anything on the inside that may stop up the drain hole.This needs to be done every year before spring or summer.If this was at all helpful,please rate,thank you.
Remove the filter at ceiling and run the AC on cool etc, and see if you can feel cool air leaking across to return air inlet where the divider between cold and return is. Check along all edges, etc for any cool air . Careful of wiring, but you should be able to get hand in there and feel especially around the edges where it should be sealed tight. Quite often a leak in that area causes cold air to enter return air and causes excessive condensation. Another thing to check is look way up inside opening for return air, with a flashlight and see if any dirt/dust on coils and fins of evaporator, and if so, needs to be cleaned off with a vacuum, and brush attachment. Let me know what you find.
do not close your vents on the a/c unit because this makes the compressor have higher head pressures in the long run will cause the compressor to fail it will last longer if you set the thermostat to lower setting rather than closing off the vents. You need to clean out your condensate drain I use a small wire brush and water hose clean them out.
I assume you are talking about the indoor unit. One function of the a/c system is to dehumidify the air. Condensation forms on the cooling coil and runs to the drip pan. There should be a drain line on the drip pan that drains the pan outside. These sometimes become clogged causing the water level in the pan to rise. Try some mild drain cleaner to open the line. Hope this helps. Let me know what you find.
possibly two or more problems. drain may be plugged and therefore no water dripping from it. attach a good wet dry shop vac and **** it out. listen for good suction at in door coil when vac is attached outside . feel large insulated line outside . it should be ice cold to touch but not frozen . if it is kinda cool then your low on gas. if its froze you are low on gas or dirty filter ,coil , or blower wheel. .you can measure temp drop between return air in and supply air out at the in door blower . it is usually 18 to 20 dgrees , in at 80, out at 60 so to speak. greater than 2o and you have a restriction like dirty or filter or froze up. less than 15 you are low on gas or inefficient compressor. be sure your fan is in the auto mode , not the on mode or indoor fan will run 24-7.
The unit is designed to run the indoor fanmotors continuously when in cooling mode on both indoor units (evaporators). The reason is that this circulates the air and the temperature thermistor or sensor is able to sense return air temperature and in turn start or stop the outdoor unit and compressor as required according to the setpoint temperature. The reason for either unit not reaching setpoint temperature can be a couple of reasons. A) Incorrect design - the unit may be too small for the application. You can calculate this roughly at 650BTU per square meter of room in a relatively warm ambient climate. Or secondly B) The outdoor unit has leaked and is short of refrigerant. You can check this when the outdoor unit is running by feeling the thicker copper tube on the right hand side of the unit. This should be cool to cold. If no temperature difference is felt, it is short of refrigerant. Hope this helps you. Goodbye