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Carrier 38tra inisufficient cooling, frost on outside vapor tube

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Recomend changing filter,check to see if blower is blowing and freon.If all is ok clean indoor coil (evaperator coil).

Posted on Sep 04, 2010

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Posted on Jan 02, 2017

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A copper thin tube from the unit is very hot. Is it normal?


Yes, well somewhat normal. The refrigerant leaves the compressor at high temperature and flows through the condenser coil where it cools about 20 degrees warmer than the outside air flowing through the condenser. Many small air conditioner units use a small copper tube (capillary tube) of a specific diameter and length for that system to cause a decrease in refrigerant pressure between the condenser and the evaporator. The refrigerant leaves the compressor as a gas at high pressure, cools in the condenser and changes into a liquid. The liquid flows through the cap tube and cools more as the pressure decreases and gets closer to the evaporator. The refrigerant boils and evaporates under the low pressure of the evaporator and turns back into a gas. That gas is pulled back to the compressor.
If the condenser is not cooling the refrigerant enough, the tube can become extra hot. Efficiency is reduced. Actual temperatures throughout the system depend on the type refrigerant used, suction and discharge pressure at the compressor, outside and inside temperature. Tables, charts and graphs for various pressure-temperature relationships can be found in refrigeration books and chemical web sites.

Mar 17, 2015 | Carrier FB4ANF060 HVAC Electric Unit & AC...

2 Answers

We have a Carrier 25HBA unit and we've noticed a frost build up on the outside compressor, my husband turned the unit off and cleaned everything outside and up in the attic. It worked. No frost...


Hello
Frost or ice on the bigger outside copper line is a indicatin of possible low freon.Hopfully that is all it is.

It is also a possibility the compressor is getting ready to break,bad valves.

You will need a tech to come out and charge the system with freon.

Check your filter is clean and new first.

Sep 15, 2011 | Heating & Cooling

1 Answer

Cortinaengine wont stay runnining missing the breather flex tube


When you say the breather flex tube is missing, I just want to make certain we're discussing the same thing; do you mean the tube that goes from around the exhaust manifold to the air filter intake?
If that's what we're discussing, it's an important part of the ice prevention for the carburetor or throttle body. As the air is drawn past the butterfly valve, the air temperature drops significantly. That's also where the fuel is vaporized, also dropping the temperature.
If the air is humid and already cool as the temperature drops, frost will build up, eventually decreasing the air flow, resulting in poor performance and eventually, when there is enough ice, the engine will die.

Jan 30, 2011 | 1995 Chevrolet Caprice

1 Answer

There is frost in the freezer. I thought it was frostless.


If you live in a humid environment its the water vapor in the air that is turning to frost in your freezer. Every time you open the door you are exchanging the cold dry air in your freezer for the humid air on the outside, and when you shut the door closed its this humid air that turns to frost inside the freezer. If its building up frost faster than normal you might have a door gasket that is leaking the cold air outside thus letting the humid air in, which is turning to frost. Check that your door is aligned properly and that the gasket is secure on the freezer door.

Hope this helps explain it.

Feb 01, 2010 | Kenmore 16.7 cu. ft. / 473 liter Upright...

2 Answers

Is it normal for fan on outside unit to be on while on heat mode


Yes, it is normal with a heatpump, you run the outside unit in cooling and heating.
It is also normal when the outside unit goes into defrost for the outdoor fan to shut off during the defrost mode and to see steam coming out of the outside unit, while it's melting the frost or ice, then the fan will come back on.

Jan 06, 2010 | Carrier XHB123D X/Y Series Heat/Cool Air...

1 Answer

Freezer defroster


Hi.
to stop leaking water from the bottom of ur refrigerator please follow this usefull steps..
  1. Check the hose under your fridge that drains condensation and such into a catch tray. Make sure the hose is draining properly.
  2. Blow air through the tube to make sure it is not clogged. A coat hanger wire can be inserted to break up clogs. An alternative method is to use a bicycle pump to force air through the drain hole to remove any obstruction. Vacuum dust bunnies from under the fridge to allow free flow of the air. Most refrigerators periodically blow warm air across the condensation tray. The warm air dries the condensation in the tray.

Clogs are usually caused when dust, moisture and micro-organisms get together in the drain tube. Keep the dust vacuumed from the back and bottom of the fridge. Make sure the drain tube is firmly connected at all points. The drain tube can be flushed with chlorine bleach, rubbing alcohol .

Freezers are designed not build frost withiin but because we open the door for a bit too long, we let room temperature air in. This air contains water vapor. The water vapor condenses on, then freezes to all the walls of the freezer. This process repeats itself every time we allow water vapor to enter; this creates a thin layer of ice you might call frost.
Avoid putting hot foods into the freezer. Let them cool before putting them into the freezer so humidity from the foods does not cause frost on the coils. Also, if it is a hot, humid day, try to avoid opening your freezer any more than necessary.

By the way when you have an issue with the defrost system or the timer, thermostat or heating element. You should be able to put it into defrost manually by turning the knob and see if that helps. You may need to do this sevral times as it only stays in defrost for a little over twenty minutes and run cycle for 6,8 or ten hours. If the ice build up is heavy then twenty minutes may not do the trick thus the need for repated defrost cycles. If it does the trick replace the timer. If not check the thermostat and heater element.

hope this will solve your problem.
Thanks for contacting fixya.com

Aug 13, 2009 | Amana ATB2232MR Top Freezer Refrigerator...

1 Answer

Carrier Weathermaker SX


If you are running it in the cooling function, your drain maybe backed up. Find your drain outside if you can and suck it with a shop vac.

Nov 25, 2007 | Carrier XHB123D X/Y Series Heat/Cool Air...

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