Temperature settings not accurate

compressor not running or low on freon i woud say compressor.

clean the whole unit then replace the thermostat

First of all, most oven thermometers move very slowly compared to the electronic sensors and controls on the oven. To make sure you are getting an accurate reading, the thermometer should be in the center of the oven, the oven should be preheated, then wait another 20 minutes after the preheat beep. If the temperature is less than 35 degrees higher or lower at this point, it can be adjusted via the controls. Usually on GE ovens you press and hold bake and broil at the same time until SF comes up in the display. Then press bake, then use the arrow keys to raise or lower the temperature setting. If the temperature is more than 35 degrees off, you may have a bad sensor, bad control board, or other problem.

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check stat calibration. see if you can measure temperture at stat. the thermostat cover temperture reading is not that accurate.

I believe what your experiencing is the 75 degrees is the hold temp position...the display then reverts back to the actual room temperature...it doesn't mean the set temperature changed back to 65 degrees. Try to reprogram the thermostat schedules, and try not to use the hold function...just the temporary hold. (which is bumping the programmed temperature up or down until the next programmed period)

Your oven's manual should tell you how to adjust this. The manual should also have a trubleshooting chart. Also remember, your temperature sensor may be going bad and will need to be replaced. For now, you can set the temperature 75 degrees higher to get the correct temperature you need.

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

Hi, It sounds to me like you have covered all of the basis. The evaporator coil should be clean if you keep your filter clean and the condensation is showing that it is cooling properly. Normally, when the temperature increases outside, you will loose as much as 35% of your units efficency as it it working very hard. 77 degrees is very good temperature if the outdoor temperature is in the triple digits or a little less. It may be that your thermostat is off just a little also. If you clean your coils and keep it up like he said, that is great! I wish more people would do this. You should have a 18 to 25 degree temperature difference between the supply air from you vents and the return air at your filter. Example, if your supply air is 56 degrees, and the return air is 76 degrees, a 20 degree difference or TD, that is excellent. You can check this with a thermometer. I live in Northern Ca and it gets up to 116 degrees here in Redding!! We are lucky to have it 80 degrees in our home, no kidding!!. If you are unhappy, call this tech about it and see what he says. Your indoor coil is fine if you have no ice and I know you keep your filter clean. If you lost a capacitor again, you would have no cooling. Like I say, keep a eye on it, it could be the stat not accurate. Check the supply at the vents and filter to see what you have. If its lower then 18 degrees or higher then 25, you have a problem. If you are in the triple digits, this will cause this. I wish you the best and keep up the good work on that unit! That' great! Please keep me posted and please be kind when rating me as I know you will. Let me know the out come.
Sincerely,
Shastalaker7
A/C, Heating, & Refrigeration Contractor

May be the location of the thermostat. Try another thermometer right beside wall thermostat & see what it reads.

Replace the temperature sensor inside the oven cavity. It looks like a small metal rod. Be aware you will never get an accurate temperature reading with those cheap 5 dollar things. After the oven is preheated, you must wait 10 minutes and take a reading. Some models have a temperature adjustment, it's listed in the owners manual.