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My airconditioner is just not cooling the way I feel it should. The thermostat never shows lower than 81 degrees. I have it set down as low as 68 but it only cools to 81

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Is this a central unit or a window unit. The central unit does 15*----18 * temperature difference from the air comming in the return air grill to the air going out the supply air grills...9*----to ----14* degree different, and the unit is low on freon,, 15*--18* and the charge of freon is perfect, 19-----22* difference, then the air flow is too low , due to either a dirty filter,, dirty squirell cage blower wheel, and last , but not least, the ac inside coil is plugging up!

Posted on Sep 07, 2008

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Tip

Temp cut off/cut in


Any thermostat, it's calibrating to cut off at the end of 2nd beginning and cut in 2nd ending of temp.<br /> Ex: In heat mode, If you set @ 68 degree, it will cut off 70 degree beginning and cut in at the end of 66 degree. <br />In cool mode, if you set at 68 C degree it will cut off at the end of 66 and cut in will be at the beginning of 70 degree.<br /><br />

on Jan 10, 2011 | Air Conditioners

1 Answer

My thermostate will not shut off when the room temperature drops to 72 degrees in which my thermostat was set at on the auto cool setting. It even continues to run and drop below 72 to 68 degrees and never...


What brand and installed in what? If a thermostat is installed on a wall that is heated by the sun it will give false temps. If it's mounted too low or high it will not be right either.

Oct 08, 2014 | Air Conditioners

1 Answer

How do i adjust AC temperature variance on a Honeywell TH5220D1003 thermostat


If you are talking about the difference between heating mode and cooling mode and the room setpoint, you can not change it. It comes from the factory with a 3 degree difference. In other words if you raise the heat setpoint until it is within 3 degrees of the cooling setpoint, for every degree you raise the heat setpoint the cooling will raise a degree.
About all you can do is increase the distance between the heat and cooling setpoint. To do this either lower the cooling setpoint to 3 degrees higher than the heat setpoint you want and then increase the cooling setpoint the desired setting. For example heat and cool setpoints are 67 and 70 respectively, and you want 65 and 73. Lower the cooling setpoint to 68 and then raise the cooling setpoint to 73. Now your heating will come on 3 degress lower than 68, the 65 you wanted and cooling will come on at 73. Remember, the thermostat new setpoints will turn on the cooling at 75 and turn back off at 73 and heat will turn on at 63 and turn off at 65.
You can perform the same using the heating setpoint, just have to look at it backwards. If you need to lower the difference I recommend a 8000 series thermostat. They are the most functional thermostat that Honeywell makes, be in mind they are about 3 times more expensive and many of the setting require a well trained tech to interpret and set properly.
Hope this helps.

Aug 24, 2014 | Honeywell Th5220d1003 Non-programmable...

1 Answer

Just need to know if the temperature should be higher to keep the room cool or lower...mine is in F and goes from 68 to 86 degrees F...Please advise if it should be lower at 68 degrees to keep the room at...


Lower temperature will keep the room cooler. For efficiency sake, lower the temperature gradually to
68 degrees.

Hope this helped you. Thanks for choosing FixYa.

Jul 21, 2011 | Sunbeam Air Conditioners

1 Answer

I have a honeywell thermostat and think I have it set to 68. However I cannot get my apt cooler than 73. How do I fix that?


Hi,

Here is a tip about troubleshooting your air conditioner...
There are many things that can cause your air conditioner not to cool...

AirConditioner Trouble - Review the Possibilities

heatman101

Jul 10, 2011 | Honeywell Air Conditioners

1 Answer

I turned my thermostat down this morning to 68 degrees. I came back about 2 hours later to increase the temp to 70 degrees but when I push the ^ arrow instead of showing the increase to 70 it just flashes...


Since it's within 2 degrees of your setting it could be one of two things. Most furnaces run longer (pass your setting) to maintain the setting you made. Which really not a problem. However, your thermostat may need calibrating. To test this theory, place a regular wall thermometer next to your furnace's thermostat and see if the two temps match when the furnace cuts on and then when it cuts off.
If the temps are both the same, the furnace thermostat is fine.

If you're turning it down to 68, because no one will be at home during the day, just set it 2 degrees cooler than 68 degrees. You will then wind up with 68 degrees.

Feb 09, 2011 | Air Conditioners

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 Air Conditioners

1 Answer

Whirlpool air conditioner - 8000 BTU - window unit


Your parents must be proud of you! You must have a big red "S" upon your chest!

Aug 22, 2008 | Whirlpool Air Conditioners

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