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My Central Air is not working my honewell Thermostat keep on switching to 83 Farenheith Hold What is the number that to keep the house nicely cool.

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  • 74 Answers

SOURCE: central air conditioner doesn't cool

A central air conditioner that runs but doesn't cool may just need to be cleaned. Plan to do this on a relatively warm day. First look for your owner's manual and, if you can find it, follow its instructions. If you can't find it, request one from the manufacturer (see Resources). To clean the filter, remove it from the furnace or air handler (it?s usually located inside or very near the air inlet side). Replace a disposable filter or clean a reusable filter according to the manufacturer?s directions. 1) Before you begin, check the thermostat to make sure it is set to "cool" rather than "heat." Then turn off the power to the unit; there is normally a shut-off or disconnect panel on the house wall next to the outdoor compressor. Otherwise, shut off the air conditioner's 240-volt circuit at the main electrical panel. 2) Rake leaves and debris away from the outdoor condenser. 3) Remove any protective grille or cover from the condenser's fins. 4) Use a soft brush to clean dirt and debris from the fins, then vacuum them with a brush attachment (be careful not to bend or damage them). If you accidentally bend fins, you can buy a comb made for straightening them at an appliance parts store. 5) Unscrew and lift the top grille off the unit, if possible. If the fan is attached to the grille, be careful not to pull any wires loose. 6) From inside the unit, hose out the fins (protect the wiring and motor with plastic). If your owner's manual calls for lubricating the motor, do that now--don't over-lubricate. 7) Then reassemble the unit. 8) To test it, turn the power on and set the thermostat to turn the unit on. Let it run for a few minutes, then feel the two pipes that connect to the condenser unit (slide any insulation back). One should feel warm, the other cool. Otherwise, call an air conditioning technician--the refrigerant may need to be recharged. NOTE: Avoid straining an air conditioner's compressor by waiting at least five minutes between turning it off at the thermostat and turning it back on. Air conditioner or heat pump still giving you trouble? To Home Problem Solver Main Page Copyright. All rights reserved. Interested in licensing this DIY Content? Related terms: what to do if, how to fix, troubleshooting, DIY, air conditioner doesn't cool, air conditioner too warm, warm air from air conditioner, air conditioner not cold enough, how to clean air conditioner, cleaning air conditioner, air conditioner cleaning

Posted on Jan 18, 2006

  • 161 Answers

SOURCE: central air conditioner doesn't cool

Usually when a unit isn't cooling it is because one there isn't enough freon in the unit. Second there could be a compressor gone bad. Third there could be a circuit short out. It can be very simple and it can be costly. It just needs to be checked out by someone who has understanding in this area.Look for an affordable service man or company in your area whom most people may be using to come out and check it out for you. They would be glad to. They can let you know about what it might cost also. If you have understanding in this area you might do it yourself. I do most everything myself and it keeps alot of money in my wallet. But I have to take the time to do it.

Posted on Aug 08, 2007

  • 49 Answers

SOURCE: blower fan keeps shutting on/off,

Try putting your fan in the on not auto position and see if your outdoor condensing unit cycles on and off. If it does you might have a defective time delay relay to blower. If not your contactor might be stuck or your thermostat could be defective.

Posted on Jun 01, 2008

Master_Tech
  • 770 Answers

SOURCE: My central air never kicks off

Sounds like you need to recharge it .. To tell while the unit is running go outsiode and feel the large insulated copper line going to the unit it should be cold to point od sweating like a can of coke you take out of the refrigerator and sit on the counter. also feel the air coming out of the unit outside it should be warmer than the outside air if not your freon is low

Posted on Jun 09, 2008

  • 230 Answers

SOURCE: my goodman central a/c unit

My gut tells me that the indoor fan relay,24volt fuse or circuit board have gone bad, but first lets eliminate the thermostat as a problem.
1) Turn off the air handler at the disconnect switch to shut off 24v.
2) Disconnect the 24v wires from the thermostat.
3) Only connect the "R" and the "G" wires together. (Usually red and green)
4) Restore power to the air handler.

Does the fan come on? If it does than the thermostat is bad. If it does not come on then we will look closer at the other componants. Give it a shot!

Posted on Jul 09, 2008

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How to fix problem of Air conditioner doesn't turn on


If your central air conditioner doesn't go on automatically:
1) Be sure the thermostat is set to “cool” and that the set temperature is well below the ambient temperature.
2) A central air conditioner should be on a dedicated 240-volt circuit; check the main electrical panel and any secondary circuit panels for a tripped breaker or blown fuse. If you find the problem there, reset the breaker or replace the fuse.
3) Make sure the furnace power switch is turned on and that the outdoor condenser's power switch, which is mounted on the outdoor unit, hasn't been shut off. Also, be sure the 240-volt disconnect next to the compressor, which is in a metal box, usually mounted on the house wall, hasn't been shut off.
4) Turn off the power to the air conditioner and check the thermostat.
5) Remove the thermostat's cover and unscrew the wire from the Y terminal.
6) Turn the power back on.
7) Holding the wire by its insulation ONLY, touch the bare end to the R terminal and hold it there for about two minutes. If the compressor kicks on, the thermostat is faulty; replace it or call an air-conditioning technician. If the compressor doesn't go on when you hold the two wires together, turn the power back off and call a technician.

on Sep 02, 2010 | Heating & Cooling

Tip

Keeping your whole home cool with central air.


Sometimes it is difficult to keep your home cool in the hot summer months. Also, some areas of your home may still be hot where other areas are too cool. Try this method to keep your home cool evenly throughout. Before you get started make sure your furnace filter is new. This will allow for maximum air flow.

If your living space is a single floor plan:

  1. Turn the air conditioning on
  2. Switch the furnace fan from auto to on.
  3. Measure the temperature in each room.
  4. Close the vents by about half in the cooler rooms
  5. This will force more cool air into the warmer rooms.
  6. Keep adjusting the vents until all the rooms have the same temp.

If your living space is on more than one level:

  1. Turn on the air conditioning.
  2. Switch the furnace fan from auto to on.
  3. On the lowest level of the house close half of the vents that are the closest to the stairs.
  4. This will force more cool air to the top floor where it is usually hotter.
  5. Cool air will sink from the upper floors which will keep the area near the stairs cool.
  6. Measure the temperature in all the rooms.
  7. Keep adjusting the vents until you have a nice even temperature throughout the house.
I found that leaving the furnace fan on all the time will keep your home evenly cool and comfortable. You may have to replace your furnace filter once a month due to the increased air flow. It will be well worth it in a cooler, more comfortable, and more energy efficient home.

Take Care,

Eric

on Aug 09, 2010 | Heating & Cooling

1 Answer

I have never used central ac before - how do I set it? If it is on 75 will that cool the house? If I want it cooler, do I put it lower? like 65?


As to your question 'will 75 cool the house?' The answer is 'yes' - if the outside temperature is low enough. Typically speaking you can expect your central AC to cool a properly insulated house to a down to a temperature of about 20-25 degrees lower than the outside temperature. For example - if the outside temp is 95 degrees. You could expect to get your house down to 70-75 degrees. If the outside temp is 110 degrees then you could only expect to get the house to 85 or 90 degrees.

So .. as you can see - your 'inside' temp will be directly affected by the 'outside' temperature.

As to the operation of central air; it is very simple.

I would suggest that you not pay 'too much attention' to what you have the thermostat set on. A comfortable temperature - is a personal thing - so - I would set it somewhere - say 72 and see how I (and others in the house) was handling that setting.

If you want it 'cooler' just 'notch' it down a degree or two - if you need it a little warmer - turn it up a degree or two. Do this "fine adjusting" till you have the temperature setting you are comfortable with.

Usually the more you can leave your thermostat alone the better off you will be from a comfort position and an electrical useage standpoint. Obviously, the higher you have your thermostat set the 'less' it will cost you on your electric bill.

How high you set the temperature is a balance you have to come to based on how comfortable you want to be - matched with how much you want to hold down the electric bill.

hope this helps

Aug 14, 2010 | Honeywell Heating & Cooling

1 Answer

A/C WILL NOT COOL BELOW 83 DEGREES


Hi, could be lack of freon, or motor for refrigeration on roof is short cycling(switching of before cooling, but first check freon(gas) in a/c, could also be faulty thermostat, you can bridge thermostat, open thermostat and if there are two wires connect then and see if cooling get colder, if thermostat are heating & cooling, don't bridge wire, you will let me know brand & model number, of thermostat so i can tell you which two wires to connect. but first check freon(gas) in condenser on roof. good look.

Aug 06, 2009 | Heating & Cooling

2 Answers

AIR IS NOT WORKING. hAVE SYSTEM SET AT 72 AND STILL SHOWS 85 DEGRESS IN HOUSE. PIPES AT THE TOP OF UNIT SEEMED TO BE FROZE


There are two things that make a central air conditioner freeze up, they are poor air flow, that means check your air filter, and your system is low on refrigerant, and that will take a serviceman to fill on refrigerant. For the time being set your thermostat cool/heat switch to off, and turn your fan switch to on. This will thaw out your cooling unit, and when the ice is gone you can switch the heat/cool switch to cool to resume cooling until you have figured out which problem you have.

Jun 24, 2009 | Heating & Cooling

1 Answer

My york central air condenser keeps running. It cools but, it just keeps running.


Some possible problems..turn thermostat where AC compressor should not run. measure lo voltage to the contactor in the compressor housing. If there is voltage there then thermostat is defective. Remove one lead of lo voltage at contactor. Compresor should stop. If not contacts are stuck. Replace or burnish contacts..

Apr 27, 2009 | Samsung AW0503B Air Conditioner

2 Answers

Air conditioner won't shut off when temperature reached


suspect a stuck contactor on condenser unit or cooling relay stuck

Jun 14, 2008 | Kenmore 72055 Air Conditioner

2 Answers

Central air conditioner doesn't turn on... Any suggestions?


If the compressor turns off and won?t come back on during a very hot day, the unit may have built up a high "head" pressure and the high-pressure limit switch may have tripped. This is usually located right inside the access panel on the compressor unit. Simply push the button to return it to operation. If your central air conditioner doesn't go on automatically: 1) Be sure the thermostat is set to "cool" and set below room temperature. 2) A central air conditioner should be on a dedicated 240-volt circuit; check the main electrical panel and any secondary circuit panels for a tripped breaker or blown fuse. If you find the problem here, reset the breaker or replace the fuse. 3) Make sure the furnace power switch is turned on and that the outdoor condenser's power switch, mounted on the outdoor unit, hasn't been shut off. Also be sure the 240-volt disconnect next to the compressor (in a metal box, usually mounted on the house wall) hasn't been shut off. 4) Turn off the power to the air conditioner and check the thermostat. 5) Remove the thermostat's cover and unscrew the wire from the Y terminal. 6) Turn the power back on. 7) Holding the wire by its insulation, touch the bare end to the R terminal and hold it there for about 2 minutes. If the compressor kicks on, the thermostat is faulty; replace it or call an air conditioning technician. If the compressor doesn't go on when you hold the two wires together, turn the power back off and call a service technician.

Jan 18, 2006 | Haier Energy Star ESA3183 Air Conditioner

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