Central Air not working

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a 2 speed furnace has a 2 stage gas valve which doesnt do anything for a regular single speed condensor, for the AC the blower is set to high as default with a 2 stage furnace. ACs are set up for maximum cooling, Jim is just trollin for fun. You would risk freeze up of the coil if you tried to set up a 2 stage blower on a single stage condensor, I dont think any tech would do it.
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wrote:

Sometimes the two speed fan is used at a slow speed for heat and a higher speed for the AC. Still not 'overdrive'. They are just more efficient that way.
Some newer systems have a fan that has several speeds and ramp up slow when they come on. Has to do with getting the most SEER rating for the system.
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.
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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wrote:

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

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.
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Unused Classified wrote:

Hi, Did do any pre-season check like replacing filter, cleaning outside unit, etc. Like said maybe coil got frozen up.
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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.
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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.
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On Wed, 26 May 2010 18:17:37 -0700 (PDT), Unused Classified
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.

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Is the blower running on the furnace or air handler, take a look see.
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Unused Classified wrote:

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