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New heating and air condition unit installed but not cooling properly, some parts of the house are are cooler than others. What may be the problem?

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Even cooling of the various rooms is the resposibility of the ductwork. Each duct has to be the right size for the room it is serving. There is usually some adjustability in the delivery grilles. Partially close the grille in the coldest rooms. That might get you by, but proper duct sizes are the ultimate way to distribute the cold air properly.

Posted on Jul 22, 2008

  • B Carson Jul 25, 2008

    I've been building air conditioners for 25 years, and proper duct work has always accomplished getting each room the same temperature. If you can't even rate this answer as helpful, I'd like to know what better answer you used to solve the problem.

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2 Answers

What is wrong with my Goodman AC unit?


Sounds like it has no power getting to it at all. Dont forget that some circuit breakers have UP as ON and some have DOWN as ON. Do not just assume a common way is always the same. You may even have to have one UP and the other DOWN as on. Check what the switch or circuit breaker has written on it to be sure.
AIR CONDITIONERS run like a refrigerator, they manufacture their own Heat or Cool and blow air past the unit to give hot or cold air to cool or heat the Room. These do not require flowing water.
Sometimes people (wrongly) call EVAPORATIVE COOLERS air conditioners. (An evaporative cooler just blows AIR past flowing water to humidify the flowing air and therefore "cool" the area)
An evaporative cooler therefore would require running water and without flowing water, the unit may not start due to the installation of a "fail safe" switch. An evaporative cooler would generally have a large box mounted on your roof with open sides with filters which are kept moist by the running water and through which the fresh air is sucked and pumped into your home.
There are varying thoughts on both, I personally consider the REFRIGERATED style as the most effective type, but they are more expensive to install and run.

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1 Answer

Unit no longer heats


Hi,

If ur AC is not coolling properly thn u must go for replacing a fuse, resetting a circuit breaker or checking to see if the thermostat is set properly. If an electrical problem isn't the cause, the refrigerant may be low if the system still runs but does not cool properly. This can be corrected by having an EPA certified technician add necessary refrigerant. Most likely, if the problem involves any major part, such as the compressor, you would hear strange noises similar to those of any mechanical equipment not running correctly, or the unit might not run at all.


Go for replacing both theoutdoor condensing unit (which includes the compressor) and the indoor coil on my central air conditioning system at the same time
Matching a new condensing unit with a new coil is the only reliable way to be certain you are going to get the rated efficiency of the new equipment. Matching a new, high SEER (seasonal energy efficiency ratio) condensing unit with an old indoor coil probably would not result in optimum efficiency.

Goodluck,
Dont forget to rate me as fixya..

Jan 30, 2008 | Air Conditioners

Tip

You can add Air Conditioning to Your Hot Air Furnace


Air Conditioning is easier to add to an existing central hot air heating system then you might think. Both systems use air to move the heating or cooling to the different parts of the house. With the addition of a coil and condenser to your system you can stay nice and cool all summer long.

The easiest way to add in cooling to a system is to install a coil on top of the furnace supply air plenum. This can be accomplished by cutting open the supply duct just on top of the furnace and sliding the air conditioning coil right in on the top of the furnace. The only limitation usually is the height of the plenum. If there is not enough height there, then the coil may need to be installed on a horizontal run.

If the horizontal run option is needed then you will have to make sure that all of the air flow goes through the run. If all of the air does not go through that run, then the ones that do not go through will not cool nearly as effectively as the rest of the runs that go through the coil.

After placing the coil in the ductwork, the piping and electric will need to be run to the outdoor condenser unit. After wiring and piping the unit the refrigeration lines will need to be purged, and vacuumed. This will clean the lines and take the air out of them. Any air in the system will cause the system not to work properly.

When all of this work is done you will be ready to have great cooling. The whole process usually takes me less than a day to complete. Adding cooling to an existing system is a simple operation when it is done by someone that has done it many times. If you have a hot air central heating system without the benefit of cooling, then you should check into adding the cooling feature to your system. You will be glad you did when the hot weather rolls back around again.

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1 Answer

Can a pro recommend a comperable replacement wall AC only-no heat?


Most air conditioners now are reverse cycle, which means that they can heat as well as cool. Cooling only units were popular many years ago due to the price difference for a reverse cycle. Today, the cost of manufacturing has dropped and it has resulted in cooling only units being virtually finished. I would suggest you get a local air con sales company to come to your house to measure up properly and determine what would be best. There are a lot of factors in installing air conditioning. IE/ The size of the house, the area it will be required to heat / cool, the amount of windows, types of walls, roof etc (Heat loading on the house) Roof and wall insulation etc etc.

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If you have a crushed, kinked, or otherwise restricted fitting in the system, it's possible the cooling may be affected. Pressure readings can be thrown off, and refrigerant flow can be inhibited.

Since the unit is new, you should have a complete parts and labor warranty, so ask the installer what the reason is that the system doesn't provide the cooling you were probably promised when they sold it to you. They should have taken into account the location of the condensing unit, the size and insulation in your house, indoor and outdoor conditions, your geography/climate, and any other load factors before selling you the system.

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1 Answer

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You can call about any wholesale Air Conditioning/ Heating, Refrigeration parts house, give them the same information, and they can look this up in there many reference Books.
Good Luck, Shastalaker7

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How long will my AC work for, if placed inside the room


I assume that we are talking about a "window" unit. No, you cannot just place it in the room. The machine is actually two parts; one part delivers the cool air to you, the other part ejects the heat out of your house. If you just had the whole unit inside, the room wuold actually get warmer, not cooler. The reason for this is that the compressor and motor generate heat also. The "heat of compression" generated has to be ejected from the room in order for the air conditioner to work. Put it in the window.
Best regards, --W/D--

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1 Answer

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My appartment does not have cenral AC/heat, it has a GE cooling/heater unit in each room. You can set up low heat or high heat but it continues runing on until you manually stop it when is to hot. Is there...


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