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Air conditioner wont cool house

House wont get cool.its a heat pump outdoor unit

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Could be low on refrigerant or stopped up evap coil. Dirty outside condensor. Just some thing for you tp check. Take a thermometer and measure the intake air and the closet outlet. subtract the difference is Temp Difference. Should be about 18 to 21 degrees. IOf lower than 16 degrees have a service tech to check it out. Russ

Posted on Jul 28, 2009

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Is the heat pump cooling itself down? It is a combination heat pump/air conditioner wall unit.


If a unit is in heating mode the outdoor unit is in cooling mode (outside always does opposite of indoor) after a while if there is a build up of ice on outdoor coil unit stops and puts hot gas through outdoor coil to clear it. The indoor fan stops to avoid and heat loss in area served buy unit once this has been done and indoor unit coil is hot again fan will start. This is the correct operation of the unit to save against bust could and reduced efficiency

Dec 31, 2015 | Heating & Cooling

Tip

A Great Tip For Saving Money


While everyone usually remembers to change their AC and Heater filters, no one thinks about cleaning the heating or cooling outdoor coil. If you have an outdoor unit for heating or cooling, those coils need to be clean too!!

The principle of an HVAC unit is to remove heat or cold from your home to make sure you have a comfortable temperature inside.

If you have a gas furnace, your good to go in the winter. Make sure you change your filter every month and you should be able to keep your home at an nice temperature for you and your family. BUT, if you have an air conditioning unit hooked up to cool your house in the spring and summer, you need to do a little maintenance every spring to make sure you get the most out of your unit and save money. The same principle works for a heat pump, so i'll break it down for each unit.

1. An air conditioning unit that has a gas heater works just like it sounds. In the winter, your thermostat will tell the heater to turn on. You will have your burner running until the fan switch in the heat exchanger gets to the right temperature to turn the fan on. This is so you don't have cold air circulating through the house. Cooling on the other hand works a little different. If your thermostat calls for cooling, your fan will turn on right away and your condensing unit outside will turn on. What you AC is doing is removing heat inside the house and putting it somewhere else. That;s where your condensing unit comes in. The heat you removed inside the house is transferred outside where it is compressed and cooled through the use of the outdoor fan.

Now, imagine if this outdoor unit has dirty coil. You are no longer able to remove the heat from the house because it's not able to be removed because of a dirty coil. This means a huge loss in cooling capacity, higher running amperage on the compressor, and your electric bill being alot larger than it needs to be. I'll have the solution after I address the heat pump.

2. Now, the heat pump. It is basically an air conditioning unit that can reverse. In the summer, the outdoor unit will blow hot because of the heat it removed in the house. In the winter, the outdoor unit will be blowing cold because it is using the heat outdoors to add heat into your house. While this sounds weird, it's engineering at it's best. In the winter, heat is able to be removed from very low temperatures and your able to transfer heat into the house because you have a compressor in your unit. It does what it says. It takes a low pressure-low temperature refrigerant and compresses it into a high pressure-high temperature refrigerant.

Now, getting to the coils of both units. You need to clean the outdoor coil on both units every spring to make sure you have a clean coil. In the long run, this will allow the unit to expell the heat gained from the house and in the long run will add life to your compressor and save you money.

On the heat pump, you'll also need to clean the coil every fall. This is because if you don't, you could have a problem with freezing your outdoor coil. If you can't remove the heat from indoors, you will slowly turn your outdoor coil into an icemaker!!

So, based on what you have, turn the power off to your outdoor unit. Spray very good with a degreaser such as simple green and let it sit for about a half an hour. Then, grab your hose and wash out the coil. You'll be amazed what comes out. Let it sit for a coup0le hours to dry out, then turn the unit on.

This will not only extend the life of your compressor, it will also save you money in the long run!!

on May 11, 2010 | Heating & Cooling

1 Answer

What is the split pump


A split system has the parts split up between indoors and outdoors. A heat pump heats and cools your living space with the same unit. A split heat pump has the system split between indoors and outdoors and heats or cools your living space. a SPLIT PUMP sounds like something that has broken.

Feb 01, 2015 | Heating & Cooling

1 Answer

Lg lsu186he unit runs for a while then go's into defrost


normally this happen because the UNIT is to BIG for cooling your ROOM or House .In other words the BTU is OVER calculated.
You must get support from the supplier manufacturer.
God bless you

Oct 08, 2012 | LG LSU186HE 17,800 BTU Ductless SingZone...

1 Answer

WIRING THE THERMOSTAT TO AC UNIT THEN FROM THE UNIT TO HANDLER


Generally, you would go from the thermostat to the air handler, and then, from the air handler to the outdoor unit. I don't know if you have a heat pump or not, so I will give you a simple diagram and you can contact me if you need more.

Thermostat : Y G R W and sometimes C
Air handler: Y G R W and C
Outdoor unit: two wires connecting to the contactor ( not heat pump)

Thermostat; Y--------------Y(air handler cooling)------------------one side of contactor, outdoor unit
G-------------G (air handler, fan)
R--------------R (air handler ,hot)
W-------------W (air handler, heat)
C--------------C (air handler, common)------------other side of contactor, outdoor unit

This is a typical wiring diagram. Just contact me if you have something different. Hope this helps. Stay cool. mark

Jul 10, 2011 | Heating & Cooling

1 Answer

Why would cool air be blowing out of my central ac unit condensor that sits outside? The other unit I have next to it blows out warm air and responds well to thermostat changes. The unit blowing cool air...


It probably has a low refrigerant charge. The air coming out of the outside unit should be warmer than the outdoor temperature when in the cooling mode and if it's a heat pump it should be colder than the outdoor temperature in the the heating mode. Check the big line going to the unit, it should be somewhere around the 40 F range and the small line should be hot.

May 23, 2010 | Goodman CKL24AR24 Air Conditioner

1 Answer

No heat when outside temp low When outside temp is 38 or above get heat. Is there a heater in the compressor that can fail?


I would start with your outdoor thermostat located in
the unit outside. I`m assuming this is a heat pump.
When the outdoor temthermostat is set to say 40F
anything lower than that and you are not using the
compressor, you are using electric heat thats located
in the air handler unit in the house.

I`m also assuming this is a split system and not a
packaged unit. If you are mechanically inclined and
you can locate the outdoor thermostat lower it below
the outdoor air temp and see if the unit comes on.

Sounds like you might have a problem with your electric heat or emergency heat

Jan 12, 2010 | Carrier XQB101D Air Conditioner

1 Answer

I have a 20 year old Trane heat pump. Outside


Yes, you will want to put the unit into cooling mode to help assistance with the ice melt.

If you can, block off the outdoor coil or disconnect the outdoor fan motor. This will assist in raising the discharge pressure and temperature and thus, it will melt the ice quicker.


Or, if you have the capability, you can take a garden hose around to the unit hooked into hot water and melt the ice that way.




If your control board is messed up, why aren't you replacing it?

Jan 10, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Heat pump not running


check your house circuit breakers first that should be labeled heatpump or outdoor unit
make sure it is on and or not tripped
then if you have a box outside near the outdoor unit open it up and see if there is a breaker or maybe fuses that could be blown

May 26, 2009 | Goodman CPLE24-1 Air Conditioner

1 Answer

Condensation leaking out of unit


if it is the indoor unit leaking, make sure that all your drain lines are clear.... if you're talking about the outdoor unit leaking water in the heat cycle...that is normal.

May 16, 2009 | Intertherm P3RA-048K Air Conditioner

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