Question about Carrier CARH09K Air Conditioner

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Heat pump not cooling after 1 hour

My carrier air conditioning wasn't putting out cool air. Then I cleaned the coil. It had a lot of hair and gunk on the coil. It runned for 3 days then quit again. I cleaned the coil again with the acid cleaner and now it will run for 1 hour then quit cooling the house. It still runs good, just won't cool the house. I was told that a flash light should be able to shine through the coil. Is this true, what do you think my problem is?

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Yes it is true . Sound like you are low on freon the unit is shutting off on the low pressure switch or high pressure switch is the outside unit clean ?you may need service. Tom

Posted on Jun 17, 2009

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Posted on Jan 02, 2017

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How a Central Air Conditioning System Works
amn_howac.jpg


Facts:
  • The typical central air conditioning system is a split system, with an outdoor air conditioning, or "compressor bearing unit" and an indoor coil, which is usually installed on top of the furnace in the home.
  • Using electricity as its power source, the compressor pumps refrigerant through the system to gather heat and moisture from indoors and remove it from the home.
  • Heat and moisture are removed from the home when warm air from inside the home is blown over the cooled indoor coil. The heat in the air transfers to the coil, thereby "cooling" the air.
  • The heat that has transferred to the coil is then "pumped" to the exterior of the home, while the cooled air is pumped back inside, helping to maintain a comfortable indoor temperature.
  • Central air conditioning can also be provided through a package unit or a heat pump.

Benefits:
  • Indoor comfort during warm weather - Central air conditioning helps keep your home cool and reduces humidity levels.
  • Cleaner air - As your central air conditioning system draws air out of various rooms in the house through return air ducts, the air is pulled through an air filter, which removes airborne particles such as dust and lint. Sophisticated filters may remove microscopic pollutants, as well. The filtered air is then routed to air supply ductwork that carries it back to rooms.
  • Quieter operation - Because the compressor bearing unit is located outside the home, the indoor noise level from its operation is much lower than that of a free-standing air conditioning unit.





















ed.

Sep 10, 2008 | Amana 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

Tip

KNOWING ABOUT CONDENSER


What is a condenser?
Is a device or unit used to condense vapor into liquid. A condenser is simply one component of an air conditioner. Whether you have an outdoor air conditioner or a window unit air conditioner your air conditioner contains a condenser.
Condensers are used in outdoor air conditioning systems as well as heat pump systems. Condensers in an air conditioning unit have very few controls. They will have an on and off switch. Occasionally these air conditioners will also have a brown out option. This option shuts down the compressor when the electrical current is low.
A condenser is simply a heat exchanger. It compresses refrigerants into a hot gas to then condense them into a liquid. A condenser is a major component in a air conditioning or heat pump unit. It moves air across the coils to facilitate the transfer of heat.
In a heat pump unit the condenser has a few more features. It will have a reverse valve that allows the unit to switch back and forth between air conditioning and heating. Even when the unit is heating, it uses the condenser for defrosting the coils. If the coils become layered with frost it will effect the units effectiveness this is defrosted when the reverse valve switches to air conditioning mode to move the hot gases through the coils melting the built up ice. It will automatically switch back to heating mode once the ice is cleared to once again heat the home.
To keep your unit in good operating condition it is vital to keep the area around the condenser clear of all debris as well as keeping the filter clear of dust and dirt. A clean machine makes a happy machine. A happy machine will keep you cool during the summer months and warm during the cold months. It is suggested to change the units filters when they become dirty, depending on your area and conditions near your home this may be as often as once a month or as seldom as every 3 to 6 months. You will have to pay close attention to your units needs to decide the right time to change or clean your unit’s filters.
It is very important no matter what type of unit you have to prevent the blockage of the condenser. If the condenser becomes block it can effect the units efficiency or even cause the until to completely fail. For this reason it is one of the most important components of a cooling or heating system. A condenser allows the maximum airflow to the unit.
Keeping you condenser in good running condition will not only prolong the life of your heat or cooling system but also provide you with the most efficient heat and cooling system saving you money on heat and cooling.www.victorwod1234.blogspot.com

on Apr 08, 2010 | Heating & Cooling

1 Answer

Light brown junk in radiator


I suspect you have a leaking cylinder head gasket, this would account for the gunk in the system. To confirm this is the problem have a shop that owns an exhaust gas analyzer put the probe in the coolant recovery or surge tank of the system and see if any combustion gases show up in the system with the car running, do the test both hot and cold engine states. You will be looking for hydrocarbons. No matter what the outcome you must have the system professionally flushes and clean uncontaminated coolant installed Ina proportion of 50/50 coolant to water mix.

Jul 12, 2012 | 2009 Honda Pilot EX-L

1 Answer

My wires burn off at the connections at the capacitor (hope that is what it is called :). will hold for two or three days, then another wire burns. CK36-1B


You have a very dirty condenser coil (Outside unit). This goodman A/C you have is very hard to get clean it a terrible design you have to take the top off of the unit get a coil cleaner I like Foaminator and clean the coil for an hour spraying from the inside and outside numerous time. Heres how to verify if its a dirty coil put your hand over the top of the unit it should be putting out a lot of air blowing your hair back. If its dirty the air will be very hot and it wont blow your hair back. Let me know ok

Jul 18, 2011 | Heating & Cooling

1 Answer

Had unit for 4 years do not use it awhole lot put


Good job, on cleaning the air intake filter. Some folks overlook that. Since that helped some, I believe you need to clean a little further. Like the cooling coils and the cooling fins for the compressor. But, before attempting any cleaning turn the Master ON/OFF Switch to OFF and unplug the unit from the wall outlet.

You can clean the coils with warm water and liquid dish washing liquid,. Rinse and dry thoroughly. When dry, apply a light coating of WD40.

The fins can be cleaned using an old toothbrush and a vacuum cleaner that has a hose and brush attachment or crevice tool.

Completing this Annual Type Maintenance should provide significant results.

Jun 21, 2011 | Haier ESA3125 Wall/Window Air Conditioner

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Can I switch my blower speed on my carrier 9300ts to high? The airflow out of my registers is extremely low. I didn't know if gas heat - high had anything to do with the blower motor speed or not. I...


Dear Friend! Blower doesn't produce any cool or heat. It's circulating or spreading out the air for which mode it's supported. (cool or heat).
Clean the coil and the blower wheel which are under dust blocked. You will get better throw in low speed itself. Do it and then write, if it's helpful. Thanks.

Jan 16, 2011 | Heating & Cooling

1 Answer

Hi, I would like to know how i can open it to clean it. I have 3 cats and it would need cleaning. It started to empty itself on the floor, lots of water. It might be (I think) because of the cat hair...


Open and clean what? If this is a mini split you are referring to you can spray a gentle detergent on the coil.( the piece behind the air filter) Take a shopvac outside where the drain line goes out and vacuum for 10 or 15 minutes. Create a good seal for good suction. Be sure to rinse coil with water as well to prevent bubbles entering any electrical devices. Good luck.

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