Why isn't my central air conditioner unit blowing out cold air?

Question

We usually have the air conditioner to keep the house at 73 degrees. This is freezing for me, so I raised it to 80. it was working perfectly fine for a day and all of a sudden it stopped shooting out cold air in the middle of a 99 degree day. I've turned it off and on and it is working the same way it normally does, except it just refuses to blow out cold air. Could this have happened because i changed the temperature? If not, what is wrong with it and what can i do to fix it. Any help is appreciated as tomorrow is supposed to feel like 107.
The filter is new.

Answer 1

your unit could be froze up. Look on the coils and compressor and see if ice is on it. If so turn off and let thaw before restarting. The coils on unit could be clogged. A quick solution until you can get someone to clean it is spray a light cleaning solution on them and spray very well with water hose. You may need to use a brush. When using a brush go with the grooves in coil. Or you may have a bad wire now allowing compressor to kick on, or transformer, or capacitor. There could be any number of things. If capacitor is bad when you remove service panel, you will either see it blown or smell it.

Answer 2

There are a few symptoms that I see.
1) When you changed the temp, the unit's thermostat (internally - not your wall unit) became defective.
2)The heat outside will cause expansion of the tube that services the home and sometimes a fracture or a small leak of your coolant can occur if it is not pumping cooler air.
3) It is a coincidence that your unit is malfunctioning at the time your changed the temperature (which would be highly unlikely).

On your AC unit (inside your house), there should be a manufacturer's name and number for service (or you can call any local AC repair). It appears that this problem will not just vanish, so you need a service call. It typically costs about $115 or so, depending on your location to have it inspected and recharged with refrigerant or to seal any leak you may have.

In some cases you may know someone in the AC business or someone else who does that will give you a good deal. If you do not have these resources, you will have to enlist a repair company to assist you.

I would not think it is your fault for changing the temp, but that the malfunction was waiting to happen. I strongly believe that your unit is not frozen up, because you raised the temp. Freezing the coils would only typically happen if you lowered the temperature.

Answer 3

Central Air Not Blowing Cold

Answer 4

I am assuming the unit does not work if you reset the thermostat to its previous setting.

1. The condenser unit (outside unit) usually has a visual fan that exhausts from the top of the unit. Is this fan blowing? If it is, is the exhaust air hot?
2. If the fan is not running, your problem may be as simple as blown fuses, a bad contactor, or worse, a bad fan motor.
3. If the fan is running, but the air is lukewarm, you are probably low on freon.
4. If the fan is running, but it is the same temperature as the outside air, then the compressor is not working. This could be a major problem.

If you have any questions, e-mail me.

Answer 5

It could be several things that are wrong. A malfunctionig thermostat. A low freon level. There is other things too that maybe wrong. You need to get a professional to look at it.

Answer 6

You might need freon in it. If the blower is working, but the air just isn't cold that could be it.

Answer 7

Some crackhead probably cut your freon line and huffed it.

Answer 8

it may have froze up,it may need freon in it.

Answer 9

it is broken