AC V unit is icing up and not cooling. - Intertherm Heating & Cooling

Thermostat may be faulty

Ton is a measure of cooling only when buildings were cooled by ice and how many tons of ice they would use in 24 hours.
British Thermal Units (BTU's) is also a measure of cooling as well as heating in 1 hour.
1 ton equals 12,000 BTU/hr and 1 watt equals to 3.41214 BTU/hr.

First off check the filter and service it if needed. . then make sure the fresh air vent is closed on the unit.. No need to cool ouside iar at this time . Then turn the unit off and take a hair dryer to it . sometimes they ice up and you cannot see the ice. also units need to cycle or they will continue to add ice . so close off any rooms that are not needed, this will lessin the load on the unit and allow it to cycle . any thing below 72-74 is expensive .. Hope this helps let me know Jon

Take it back or call Sears. A 2 week old unit should not do that. I'll assume the settings are right like set on AC Auto or Max cool and not just fan. Are the coils icing or were they icing behind the filter? If not, I think it may need to be serviced.

Try turning off the ac unit for about an hour.(Your might have too small of ac unit or just have the ac set too low..Causing the coils to freeze.

It's most likely an airflow problem, you say you had the vents closed? Icing up is normally caused by lack of load (air flow) or loss of refrigerant charge. Make sure all your vents are open to allow for as much airflow as possible and that your filter is clean. Some units do not work well on low airflow setting when the outdoor temps cool down at night.

Newer models of window AC's use either a flailing fan to spin the condensate out the sides of the AC (outside the window) or the heat of unit and outside air will evaporate the condensate.

Either way, any excess will spill over the back edge, hence the reason that manufacturer's recommend that the AC be installed with the rear of the unit slightly tilted down to prevent excessive condensate (water) from building up and/or coming inside the front of the unit.

As to the icing, it could be that the unit is undersized for the space you are trying to cool and can't keep up and is running all the time in an attempt to cool the air down in the room you have it installed in. Try letting the unit "defrost" by shutting it off for awhile (until the ice melts) and then keep the shades pulled and the door closed once you restart it. I also tell people to give the AC a chance to adjust by setting the cooling temp to around 10 cooler than the present temperature of the room.

It's really hard to completely cool down a hot room all at once, so unless you're willing to let the unit cool it down in stages, it might not be able to ever get a 90 degree room down to 65 degrees in one day, if ever. Give it a try and see what happens, otherwise, you might need a larger rated BTU unit to get the cooling you desire.

High humidity causes Icing of the cooling coils. Avoid constant running of the a/c. Meaning let the AC pull the house dow 2 - 3 degrees at a time.. The unit shutting off will allow the ice to melt. Make sure the drain is clear by going outside and chkg for drainage. Once the house is reasonably dehumidified the ac can be set and left on its own.

Change the filter. It doesn't have the proper air flow across the coil. Hope this helps. Good luck

Operate your air conditioner with the fan in the on position. But first turn the fan on, turn the temp up or shut the cooling off. Your coil is more than likely frozen over. At night when outside temperature drops the refrigerant pressure and temperature in the system also drops. This action can cause icing of the cooling coil, with the fan in automatic everything shuts down at the end of a cooling cycle. Thus no air movement to melt ice on previous cooling cycle.