There are multiple reasons this could happen.
Refrigerant - not enough refrigerant (usually due to a leak in the system) or too much refrigerant.
Components - a clog in the system, saturated desiccant in the accumulator or receiver-drier, clogged metering device (orifice tube or TXV), damaged fins on the accumulator, bad compressor or compressor clutch, bad low pressure switch.
HVAC system - bad blower motor, blockage in the ducts, jammed blend door.
Not in operation or use. It will either cool or not cool properly. If it does not cool it is damaged and needs repair.
The AC will not cool properly if at all. This is one case where more isn't better.
No.
Make sure the radiator fan is working when the AC is on.
Yes, a window AC unit is designed to be installed in a window to properly vent hot air outside and cool the room effectively.
If the ac is on and no cool air is coming out you may not want to turn the ac on at all. When you put the ac on, verify that the compresor is actually coming on, if you can see it spiining whne turned on, you may have low refrgernet in the sytem or a blockage. It is best to have it look at. If it is run when it is not working properly, you can severly damage the ac sytem if its being run when somthing is wrong.
An AC may not cool properly due to several reasons, including dirty air filters, low refrigerant levels, malfunctioning thermostats, or issues with the compressor. Additionally, blocked condenser coils and leaks in the ductwork can hinder the cooling efficiency. For more information, visit National Electronics.
Your frozen AC unit may not be cooling properly because the evaporator coils are frozen, which can restrict airflow and reduce the unit's ability to cool effectively. This can be caused by issues such as dirty air filters, low refrigerant levels, or a malfunctioning thermostat. It is important to address the root cause of the freezing to ensure your AC unit functions properly.
Most likely you have to refill AC systems, refilling kits are available in Advance Auto Parts and AutoZone.
An 800 square foot area need a 15,000 BTU air conditioner to properly cool. Properly sizes the AC unit ensures that the unit will not be overworked.
Yes, the AC has iced over and is not functioning properly.
Your frozen AC unit outside may not be cooling properly because the freezing could be caused by a lack of airflow, low refrigerant levels, or a dirty air filter. This can restrict the unit's ability to cool effectively. It is important to address these issues promptly to ensure your AC unit functions efficiently.