Is it a central unit? check and see if the fan and compressor are running in the outdoor unit. The system may be low on freon or the compressor may not be running. It is best to call a qualified HVAC technician.
it's an air conditioner because you made it into cool
If central air conditioner turns on but is not blowing through the vents, check the filter. If it is dirty, change it. Change the thermostat into cool, this will defrost the air conditioner.
Check the temperature control cable
Low refrigerant charge? Temperature control cable not adjusted properly?
There are several possible reasons why your air conditioner may be blowing out warm air instead of cool air. Some common reasons include a dirty air filter, low refrigerant levels, a malfunctioning thermostat, or a problem with the compressor. It is recommended to contact a professional HVAC technician to diagnose and fix the issue.
An air conditioner cools a room efficiently by taking in warm air, removing the heat from it using a refrigerant, and then blowing out cooler air. The refrigerant absorbs the heat from the air inside the room and releases it outside, creating a cycle that keeps the room cool.
so its not blowing at all anymore, as in no air at all? if tahts the case then how do you know its still cold. if it isn't blowing as well you may just need to change out your filter, just like in a house all cars(most)have a air conditioner filter. if its not blowing anymore at all it sounds like your compressor or your whole dam motor went out, take it to shop.
If your air conditioner is set to cool and it is heating you have a broken thermostat.
cool air
Sounds like the compressor coil is either blocked or plugged. It may also be the fan isn't blowing when the car is stopped also.
An air conditionerÕs function is to take the hot air inside the enclosed space and release some of it outside while blowing a cool air in the room that is converted from the hot air. This process is being done repeatedly by heat exchangers found inside the air conditioner.
The most common cause of an air conditioner not blowing air is a plugged filter. Be sure your filter is clean.