Central Air not working

Yes....I have central air and if you start up your unit and drop the thermostat drastically it puts the air conditioner into "overdrive" and the radiator that the air flows through basically plugs with frost....best thing you can do is shut off your AC unit and allow to thaw for 4-6 hrs and then fire back up but SLOWLY drop the temp over a 24 hr period... Jim

Do you know anything about the furnace blower, can you hear it running if you go next to the furnace? Is any air, cold or not, coming out of the registers? If not, then the furnace blower is not running, or the air filter is clogged, or the A-coil inside the furnace is frozen over as the previous poster suggested.

Hi, Did do any pre-season check like replacing filter, cleaning outside unit, etc. Like said maybe coil got frozen up.

Turn it off immediately. It is NOT good to have the condenser on without the air handler. The air handler (indoor blower fan) is either not on which means someone screwed-up the installation or it is on but for some reason the air is not circulating such as a blocked evaporator. In either case turn it off before the compressor is damaged.

You didn't really supply enough information for us to have any idea. You can research AC repair, online. However, it sounds like time to call a HVAC repair company.

You leave some holes in your story.

Cold air is not coming out. What about warm air?

The outside fan is spinning? Or the inside fan?

You probably mean the outside. What about the inside fan. Does the furnace/AC cabinet vibrate at all, or make any noise? What?

Are you a troll? The air never goes inside. The liquid in the pipe does.

You have to be kidding, "if you lower the thermostat dramaticly it puts it in overdrive" not so it just on or off. Freezing the coil, [ its not a radiator] is one of several things, low freon or low air flow. "4-6 hrs wait" no you dont even know what the issue is, just look at the coil to SEE if its frozen, it could be many things. Learn a bit about ACs

Is the blower running on the furnace or air handler, take a look see.

You're over your head dude, call a service guy.

There is no "overdrive" on home A/C units.

Ice on the evaporator coils almost always indicates LOW Freon.

No cold air and no ice almost always indicates NO Freon.

You have to be kidding, "if you lower the thermostat dramaticly it puts it in overdrive" not so it just on or off. Freezing the coil, [ its not a radiator] is one of several things, low freon or low air flow. "4-6 hrs wait" no you dont even know what the issue is, just look at the coil to SEE if its frozen, it could be many things. Learn a bit about ACs

As tradesman...I used "overdrive " as a figure of speech....and also coil, rad, potato tomato... Hadn't realized I was talking to an idiot....sorry...will get the terminology right for those that have there noses pressed to the owners manual... Jim

You calling me an idiot? Look in the mirror. Ok mr know it all "Bozo Jim AC Pro "Tradesman"", lets see if you can possibly expain just how my single speed AC goes into overdive, You cant can you, because it doesnt. This is "are you smarter than a 4th grader" stuff, or " here`s your sign" or a " caveman can do it" are you really that dumb. And Ive never read an AC manual, this is simple logic, Bozo Jim the "tradesman".

Jim:

The OP obviously didn't know much, and your choice of words therefore was VERY POOR. You should have said that it would be turned on for a long period of time and that the evaporator coil could freeze solid and block the air flow. Ransley was right, altho his choice of words was over the top, as he frequently does.

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Over the top? well maybe but he was rude and wrong so Im just returning the favor.

You calling me an idiot? Look in the mirror. Ok mr know it all "Bozo Jim AC Pro "Tradesman"", lets see if you can possibly expain just how my single speed AC goes into overdive, You cant can you, because it doesnt. This is "are you smarter than a 4th grader" stuff, or " here`s your sign" or a " caveman can do it" are you really that dumb. And Ive never read an AC manual, this is simple logic, Bozo Jim the "tradesman".

I don't argue with idiots....they just bring you down to there level and beat you with experience....so go just go away idiot... Jim

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You mean their? level

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You still dont get the basics, a regular AC system doesnt do overdrive or anything else but On and Off, the idiot it you.

Since it says "hide quoted text" aparently he's posting from Google Groups?

You're right about the spelling correction.

"ransley" wrote

Not even if you set the thermostat really really low? ; )