Air Conditioning and Coolant
Lexus SC
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What do you have to do to your AC if it is blowing cold air?

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2006-02-15 07:51:14
2006-02-15 07:51:14

it should be blowing cold air(wish mine did)but really though you might try to adjust the warm air control i think we are on the same page i found out if you turn your control knob all the way counter clock wise to the coldest postition it closes the vent from the outside, the recyle should kick on and not allow outside air to come in even if the controler is turned off

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Related Questions


If your ac is making noises or is blowing hot air instead of cold

does fan door motorized or on a vaccuum line when you switch from AC to defrost?

Actually, the AC is always blowing cold air. Its just that sometimes your nerves can't feel it because your body is used to it.

It usually means that your system has developed a leak. Your AC system is charged with freon gas. If a certain amount leaks out, a safety device prevents the AC compressor from starting. Without the compressor, no cold air.

you may be low on freon and jsut need a good charge of R134a

Kinda, but it'd be real inefficent and expensive. Think about it: at one end of the room you have the AC making cold air. At the other end you have the fan, blowing that cold air out of the room. Means the AC has to take in new warm air from the outside and cool it. You're better off having a large portion of the air in the room recirculating. That way the AC doesn't have to work that hard.

Yes if it is set to heat indoors but if it isn't than go get it checked out by a qualified AC technician.

Is is blowing hot air on the drivers side, or nothing at all? If it is blowing hot air even though you have the thermostat set on cold - it could be the heat actuator. It will occasionally do this after about 75000 miles or so. Mine started at 114000 miles and if you turn it off and turn it back on - it will start blowing cold again...$400 repair. Hope this helps.

If there is not cold air blowing out then you could go get your ac charged

Look to see if the compressor is running when the ac is on. If not, then check the Freon pressure, as the compressor won't run if the Freon is low.

Refrigerant leak? Blown fuse? Compressor not starting

The first thing that you need to check will be the freon level in the system and work your way from there.............

You could open the windows instead of turning on the air conditioning, or make it so that the air is not blowing as much and it not so cold.

if its blowing, but not blowing cold its low on coolant. it takes r134a.

If its been recently charged there maybe moisture in the system.

Either you are out of freon, your compressor is broken or your cabin filter is plugged. There are other possibilities but these are the most obvious.

That is exactly how a heat pump works in heating mode are you sure it's not a heat pump?

umm recharge your ac compresser u can buy the kit at wallmart for like 30 bucks

There are a few reasons why a central air unit is not blowing cold air. The coils may be dirty, the unit may need freon, or the thermostat could be broken.


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