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When the compressor is running all the time and the freezer is not cold enough, it could be the hot side can't lose the heat, see if something is blocking the radiator on the back, but most likely you lost the cooling fluid through a leak in the cooling system. When the temperature is rising slowly through the days (or hours) while the agregate is running, that will be the problem. You won't be able to fill it up yourself. The system is filled and sealed.
Air conditioning is not an exact science. There are many variables that can affect the way an air conditioning system performs. Also there are many factors that can affect the size of the air conditioner that you need. What I want to get into next is the problems that can show up from an air conditioning system being either too big or too small.
You have three estimates for central air conditioning in your house? Each estimate quotes you a different size unit. What do you do? Buy the middle one because they are between the other two? You may be happy and maybe not. Let me explain how this works and what the results are of not getting it right.
If the air conditioning unit is undersized, this is actually the lesser of the two evils. If your system is too small the worst that can happen is not nearly as bad. An air conditioning system that is too small will just not quite keep up on a very hot day. This usually is not that noticeable because as long as there is a difference between the inside and the outside temperatures you will still be happy. If the house is 80 degrees on a 95 degree day, you still feel rather cool in the house. The other advantages to the under sized air conditioning system is that you still get very good dehumidification on a mild rainy day when you still want some cooling and everyday that you are running the air conditioner you are saving money. Yes, even if the air conditioner is running longer, you are still saving money because it is using less power. The efficiency of the slightly undersized system will be much higher than the oversized system.
If your central air conditioning system is too big for the space being cooled you are actually worse off than if it was too small. Yes too large of a system creates some major problems! If your system has too much capacity and cools your house off too quickly, you will not get he secondary effect of that an air conditioner is designed to give you. The second benefit of your system is to dehumidify the air. If your system can cool the air very rapidly before it has time to take the water out of the air, you will not have a comfortable house. This also goes for any other building. Have you ever entered a store and it felt like you just walked into a refrigerator? That is because the equipment is so large that it is cooling the air, but not removing the water out of the air. The effect is a very uncomfortable cool. This can happen in homes, but usually to a lesser degree. The discomfort may not be that pronounced, but it will not be as comfortable as it could be.
So, as you can see size really does matter when it comes to air conditioning. The oversized system will give you an uncomfortable cool and waste energy at the same time. Neither of these things are something that you want. The undersized system may allow the temperature to creep up a bit on a very hot day, but will save energy and give great comfort most of the time. The ideal sizing is for the unit to be running constantly on the hottest day of the year and barely be able to keep up. When you are shopping for central air conditioning make sure that you tell the salesperson what you want and insist on seeing their heat loss/gain calculations for your building. No one can guess at what you need and do it correctly. Making sure you have the right central air conditioning for your house or building will make you comfortable and happy for many years to come!
More than likely one of your external coil cooling fans is not operating. OR Access for the fan to blow cooling air is blocked, or the cooling coil is so dirty the fan air is not effective in cooling the coil. Refrigerators are a sealed system. If the compressor has gotten so hot that the motor has burned you might as well find a lightly used replacement. It will probably be less than a repair by a qualified technician. Even if I told you how to replace the refrigerant the stores would not sell it to you. This is not a car Air conditioner! If you lost refrigerant it has probably burned the compressor motor. The refrigerant "acts" like a cooling system for the compressor motor.
A few things could be wrong here. 1. if your running low on anti-freeze and your engine is getting hot, the thermal switch on the AC compressor will shut it off until it cools down. 2. You could be low on freon. 3. Your compressor may be bad with leaks.
Yes you can BUT while doing so this is the things that take place:
1. The compressor requires low temp gas to help it cool down. If it doesnt then the compressor starves for refrigerant and over heats. This additional heat breaks down the oil in the system and one of the bye products is acid. This acid eats away at the windings and when its all the way thru you have a short to ground. New compressor time.
2. The compressor also reguires oil to help keep it cool. Low on refrigerant will not bring back enought oil and you could have a mechancial failure. This is also new compressor time.
3. With the system low also will make it run all the time causing the light bill to double.
with all this said, if you have enought money to install new compressor and labor and material and dont mind giving a lot to the electric company, LET IT RUN.
if you dont have lots of money, shut it off before it costs you a lot of money. Hope this helps. Wally
First the weather is extremely hot mid 90's and humid.I have a Trane combination a/c heat pump system. The A/C was pumping out warm air.I called for a technician and the problem was the compressor was not working.The solution/fix was to replace compressor start capacitor.The technician was here for about an hour.The compressor was running before he left however I informed him the air coming out of the a/c ducts after one hour of run time did not feel as cool as usual. It took from 1pm until 10 pm at night to cool the house air down to 80 degrees and the system ran constantly.I left it on 80 as that is where I usually leave it. Today again it is running all day barely able to keep the house at 80.My home was built in 07 block house, well insulated with thermal double pane insulated windows.I suggested to the tech to check the refrigerant level but he did not think it necessary and did not perform the check while here. The unit will cool the house down to 80 degrees but runs constantly.My question is: Should I have a technician come check out the system to insure proper refrigerant levels and pressure????????
You will need a service call to check for a leak in the coolant or possible bad compressor or compressor starter. If the compressor is coming on and no cool air then the coolant has leaked out and can no longer cool the unit and will need replaced by a licensed technician. If the compressor is not coming on but gets very hot then the compressor is bad, and if it is not coming on and not hot then the starter condenser is bad.
have you tried charging the ac system? most ac compressors have a pressure switch that will not allow the relay to engage the clutch if the coolant pressure is low. $15 can of r134a and maybe a $20 Haynes manual is well worth the price difference, eh?
what this means is that either you have a low charge or your expansion valve is failing to operate properly. the expansion valve regulates the ther system which in turn allows the clutch to kick in . 4-5 years is generally the time a system needs a recharge anyway because the refrigerant starts to break down and the system no longer meets the minumum pressures. plus your dryer element most likely needs replacing as well thats where you get the smell from the crystal pellets inside the dryer are no longer any good