My central air conditioner is not blowing cold air. I don't have a the manual.?

Question

I read some where that I just have to clean it but I don't really know. Is this stuff also attached to my furnace?

With the tab on "on" or "auto" it still blows warm air.

Answer 1

Depending on manufacturer and model of your A/C unit, it's possible yours is a air conditioning unit/heat furnace combo.

Find online if they have an OFFICIAL website from the manufacturer; they may have online manuals to your exact model or an email address, where you can send off for one.

If none's available, call a trusted friend who does have a A/C system like yours; maybe they can help.

If not: then we carry on here to solve your problem: Shut down the A/C by both the thermostat switch and the breaker panel A/C switch.

Just below the furnace part, there should be a grilled door. That's where the main filter is located. You'll see easily how it opens....and brace yourself: it could look pretty groddy. Carefully remove the filter. Now, look UP inside the cavity for another filter. You ought to see where it's located and how to remove it. Make note of how it is installed.

On the cardboard sides, you'll find the filter's size dimensions. Jot those down and if possible, what type filter it is. If either are a metal type filter, then you can take it outside and blast it with a high pressure water washer till it's clean and air dried after two or more hours in the sun. There might be a similar filter that too can be pressure washed and let out to dry.

If the filter is NOT a metal type one, this is where jotting down those dimensions come handy. Take the noted dimensions to a local large chain hard ware store. Look for the exact size air filter. Hepa or electrostatic type A/C filters of those exact dimensions is recommended; buy about 4 of those.

When installing such air filters, make note of a small arrow and the words AIR INTAKE. With the arrow pointing IN the cavity, install the filter and secure the grilled air filter intake door.

Flip on the A/C breaker switch and the thermostat switch to AUTO. You can adjust the temperature to your liking.

When it's back on, listen close for sounds of mechanical difficulty; if heard, shut down the A/C and call the A/C guy. Get ready to hear it may be a severe clog up inside the furnace uint part or worse: if the compressor outside is shot as may be the motor that couldn't get air in--both can get expensive to fix. Best case scenario: it's only the freon that needs recharging. Sigh...I really get leery of calling a service tech, espicially when they see someone who is clueless on how their home appliance works; what you don't know may wind up costing you by their deceit.

However, if the unit sounds fine: give it about 4 hours to get a sense of if any cool air is going through the house. It may not even take that long to notice. Good tip here: replace A/C filters normally every 30 days. If recommended longer by the package on replacement filters, keep an occaisional eye to determine when the filter needs replacing.

Answer 2

In most units these days the air circulation system for furnace and refrigeration are one and the same

Two things here---1---how long since this unit has been serviced ? and ---2---how long since the air filter in the circulation system has been changed ??

If the filter is clogged and if you don't know where the filter is to change it---I guarantee you it's clogged--it will not only cause your air conditioner to not function properly ---it can cause the unit to burn out completelly and cause you to have to replace the whole damn thing ---extremely expensive---This air filter should be replaced NO LESS than at least once every two months ALL YEAR LONG---

The other thing is---if this unit has not had a service check in two years---I guarantee you that you are in need of refrigarant gas in the unit---this is something only qualified and trained people should be attempting ---But--if you are running the unit with little or no refrig gas--it is costing you big time already for the ineffiencent service you are getting from the unit...

SO---FILTER---SERVICE (gas up the unit)
ONE OR BOTH---MY GUESS IS BOTH--and you should be cool again

Answer 3

Central Air Not Blowing Cold

Answer 4

This Site Might Help You.

RE:
My central air conditioner is not blowing cold air. I don't have a the manual.?
I read some where that I just have to clean it but I don't really know. Is this stuff also attached to my furnace?

Answer 5

There should be a different unit for your air conditioner. Also your filter may need to be cleaned or replaced. Another thing that could be wrong is that it may need to be charged with Freon. Another possible thing is that your ac could be frozen...this happens when you try to cool down the area too fast....like it is it warm in the house and you turn the thermostat down to 50 degrees...that is going to freeze it up. I would call a professional if I were you....it doesn't sound like a major problem though...Good Luck....and try and stay cool!!!

Answer 6

Check the inside of the squirrel cage (the fan that blows the air). Mine was covered with a thick blanket of dirt/dust. Once cleaned, the unit ran like new. Just remember to shut off the unit prior to trying to clean it.

Answer 7

i just had the same problem, turn off the main power to a/c unit, remove the air intake vent and look inside . there is a coil there that may be dirty. spray it clean with a hose , put it back together then go inside and make sure filter is clean.
the unit if it is older may need freon...call an a/c tech.

Answer 8

clean the air return or check your freon

Answer 9

Those service contracts that seem expensive, don't seem near as bad after you get done fix'en on it yourself. Call for help. Pay me now or pay me later. The sooner you call, the less it cost.

Answer 10

you need to call a technician and have the freon checked.