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I DO NOT HAVE ENOUGH AIR FLOW FROM VENTS TEMP IS FINE 45 DEGREES ON 90 DEGREE DAY HOWEVER INSIDE TEMP NEVER SEEMS TO DROP UNIT RUNS CONSTANTLY TO REACH 81 DEGREES

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Sounds like your filter is plugged or dirt in the coil or blower wheel.

Posted on Jul 29, 2008

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My Goodman unit won't cool below 78 degrees inside during this heatwave. The thermostat says


your home may not be insulated well enough or you could have leaking duct or your system may not be charged correctly ac systems are not sized to cool below 76 degrees above 90 degrees outdoors because this will increase your utility bills during the cooler temperatures. thank your governement and all the regulations we have to follow for this. they would rather you save money than be comfortable. and we are actually in violation of state law and federal law if we install a unit that will cool below 76 degrees on 90 degree outdoor temp

Jul 02, 2012 | Goodman CKL36AR36 Air Conditioner

2 Answers

I want to know what temp to expect out of my register if for example the outside air is 90 and the inside air is 72 and if their are any other specific details(not interested in hooking up my gauges...


Hi,
For comfort cooling w/ r22, you can expect a delta- t of 20 degrees F across the evaporator, or a seventeen to twenty degree drop from return to closest supply grill, so if your return air temp. is 72 degrees, you should see from 52 to 55 degree air temp. at grill.
Other factors come into play as well, how well insulated the duct work is, r-6 is industry standard now, and how well insulated the attic space is as well as temp of attic space, ridge vent works well, and so do solar barriers to keep heat out of attic space.
This should help.

Jul 27, 2011 | Air Conditioners

1 Answer

I am not sure if it is a problem.....we recently bought a house with the above heatpump in it. We have noticed lately that the inside unit (not the outside unit) developes a layer of ice on it on really...


If it works fine during the heat of the day, but as soon as it cools down, it freezes up, then you may have a low refrigerant charge. The other things you may check are the indoor filters to make sure they are clean, and check if you are getting good air flow through the vents. Bad air flow can mean you have a dirty evaporator coil if the filters are clean. If the above checks out ok, then you will have a low refrigerant charge and need a technician to come out and charge the unit. What happens is the low charge will cause the pressures/temps to drop inside the unit. When its hot enough outside and warm enough on the inside of the house, its enough to keep it from freezing, but as soon as the outside/inside temps drop, the refrigerant drops below the freezing point and starts to freeze. As for asking if its a problem, definitely. Hope this helps and good luck!

Jul 02, 2011 | Air Conditioners

1 Answer

I just got a new heating unit installed. However it runs constantly. If the target temp is 68 degrees it will hit 68 degrees and just keep running. It does the same at 63 degrees. Is this normal?


Dear friend! Any thermostat, it's calibrating to cut off at the end of 2nd beginning and cut in 2nd ending of temp.
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.
Hope it's helpful to you?

Jan 10, 2011 | Intertherm Air Conditioners

1 Answer

I had the same issue...the temp is 30 degrees out side and like 50 inside...every time i turn on the heat the aux heat turns on...i tried to turn on the EM Heat but then the aux heat still turns on...i had...


You obviously have a heat pump. A heat pump is basically an air condition running in reverse. By way of example, during the summer time you will notice cold air coming from you vents and hot air being blown out of the outside section of you unit. And in the winter time it switches the flow of refrigerant (freon) and sends the hot air inside and the cold air out. So when the temp drops below about 45 and/or there is a high demand for heat inside the aux light will come on. When this happens it bring in the resistance heat (back up heat stripes) to accommodate for the added need for heating. Heat stripes do in fact burn a lot of electricity. My suggestion to you is not to make more than 5 degree increments of temp rise at a time on your t-stat. For instance if it is 50 inside, set the t-stat to 54, as the temp in the house rises you may continue to raise you setpoint...just never more than 5 degrees of room temp. Otherwise there is not much you can do for it on your own.

Dec 14, 2010 | GE Zoneline AZ55H09D Air Conditioner

1 Answer

I am working on a M # GPG13420901AB. This is a 3.5 ton package unit that replaced a 3 ton package unit on 1700sq/ft single level home. Old unit was working fine but was replaced when the home was...


It sounds like you are low on charge. I think you have a thermostatic expansion valve and you need to check the subcooling, you should have 12 to 15 degrees at 95. At 95 degrees your head should be about 280# for a 12 or 13 SEER unit or higher depending on the effeciency. At 78 to 80 degrees indoor depending on the humidity, that is normal. The valve will open to try to fully feed your indoor coil and it sounds like your head pressure is to low to force enough refrigerant thru the coil.

Aug 16, 2010 | Goodman Air Conditioners

2 Answers

Indoor unit temperature between 60F & 70F after R22 charge..


The pressure changes with temperature, it is not a true gauge to ensure a proper charge.

You should have a 15 to 20 degree temp drop across the evap coil. (return air vs supply air)

Can you verify that the compressor is running?
Not the condenser, but the compressor located inside the condenser (outdoor unit)

it really sounds like it is still undercharged.
Check the temp drop, let me know what it is.
Also tell me what the outdoor ambient temp is.

( for example.... 98 degree outdoors with 85 degree indoor temp could result in pressures something like 325 on the high side and 75 or 80 on the low side.
With the exact same unit, but 80 degree outdoor temp combined with 70 degree indoor temp, your pressures could read 215 low side and 55 low side. Not to mention that more efficient units often have higher pressures on the low side because they have more coil space and remove heat more efficiently)

Aug 21, 2009 | Sanyo Split System Air Conditioner

1 Answer

Central air running all day and not cooling very well


Condensation by the compressor is okay, but if you see it icing up thats reason for concern. The indoor coils can freeze up if there is not enough air flow. Make sure most if not all the registers are open. Take tempature readings at the return and at a supply vent. There should be a 20-28 degree difference. If the difference is only in the teens you have a functional problem. Be sure to shade direct sunlight. And if it gets below 65 degrees at night be aware that if the A\C runs through the night it may block up with ice in the evaporative area. If outside temp reaches 100 degrees unit will run all day. Good luck

Jul 13, 2009 | Air Conditioners

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