Question about Ruud Matching Split Air Conditioner

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Power to compressor but compressor will not start Unit is split system-2.5 ton, freon is good

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I would check the capacitor( shiny little round or oval can) if bad get an exact replacement(mfd and voltage) if it is good i would try adding a boost capacitor(increases starting torque by 300%)

Posted on Jul 30, 2009

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Brand New 2 weeks old 4 ton Trane compressor leaks a lot of water onto pad


If the unit is running in cold weather than there is ice building up on the coils located outside. This is normal in that the unit is running in heat pump mode heating inside and cooling outside, After the unit detects the ice build up it briefly reverses the cycle heating the outside coils melting(defrosting) the ice which you observe as water on the pad.

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1 Answer

Lg split system wont stay on


When the freon is low the unit will start. When the compressor starts the low pressure side drops and shut it off as the high pressure rises. The low pressure switch shuts off to protect the compressor when there is not enough freon to carry the oil to lubricate it.

Oct 18, 2014 | Heating & Cooling

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I have a split system air conditioner that quit blowing cold air


either the compressor is not running or you have a leak and are low on freon. the outside fan running does not tell you the compressor is running.

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1 Answer

Aircon stops after few minutes without having the room cooled the correct temp.The compressor does not start .We have to wait for a long time after shutdown and restart for it to cool again. If not


Most possible reason in this case is defective compressor(it overheats),or not enough freon in the system. Solution 1.change compressor;2.Recharge the system with freon.

Apr 02, 2014 | Carrier Heating & Cooling

1 Answer

My Amana heat pump model PTH153B50AJ does not cool properly. The compressor comes on and the fan works.


This sounds like a freon problem your system probably has a leak in the system somewhere. Amana has tons of problems with there equipment. They make there coils paper thin and they split especially on a heatpump. Amana used to be a good brand and then got bought out by goodman manufacturing and have turned there product into ****. How old is this unit?

Jun 14, 2011 | Amana PTH153B50AJ Heat Pump Air...

1 Answer

I have a Ruud 2 ton split system and the system will not cool. The compressor and fan on the outside unit works and the fan blower on the air handler works too. The temp on the lines coming into the...


The small line coming in from the outside unit should be warm to hot and the larger line should be cool and sweating with water forming on it. I am taking for granted that the unit was working if so it sounds as if the unit is low on freon. your inside coil should be sweating a lot from top to bottom if it is only cool or sweating on the bottom but less to nothing up top you are low on freon. When very low the unit will stop working just like a broken valve in the compressor. If it is just a little low it will not cool properly and at night it might even freeze the inside coil up.

Aug 08, 2010 | Ruud Handle Air Conditioner

2 Answers

Compressor will not stay on.


very good possibility that it is low on freon. If indoor unit is blowing ambient air, not cooling is happening. If this is the case and you are sure the compressor is running and then shutting off, the compressor could be overheating and the internal overload is taking out the compressor. If outdoor fan runs and compressor runs, probably cause. If capacitor is bad, unit would most likely not run that long. While unit is running, feel the large line at the condensing unit. If it is cold, and stays cold, could be something else going on. If stays warm, most likely low on freon.

Apr 19, 2010 | Intertherm P3RA-030K Air Conditioner

1 Answer

Have a reverse cycle split system LG aircon blowing warm air on cool or heat,have cleaned filters and turned power off for to reset ,both inside and compressor fan working


Hi, dealing with these ductless split systems on a daily basis, I can say you have checked some of the things I would have wanted you to check, which is good on you're part.Blowing Room Temp. air in both heating and cooling indicate that the compressor is not running even though the outdoor condenser fan is on.There are several things that could cause this. You have a compressor run capacitor that starts the compressor, but I am thinking on you're unit, it has a dual capacitor that runs the compressor and fan together. Fan is on, so I will rule this out.These units are notorious for leaking freon as the Liquid line and suction lines are not brazed, they are put together with connectors that tend to leak over time. If it is low enough on Refrigerant gas, the compressor will shut off and stay off on low pressure. This unit has a low pressure switch that has normally closed contacts, that opens and stops the compressor from any damage which in turn, you will have no cooling or heating.Do this for me, turn the unit on in cooling, lower T-stat way down so outdoor unit comes on. Go to the out door unit and where the elect. wiring and lines go into unit you will see to copper lines. The largest of the 2 lines is the low or suction line.Wrap you're hand around it and it should be nice and cold. If it is warm, just touch the smaller line, it should be rather warmer, almost hot.If both lines are of normal temp. you are either out of freon or the compressor isn't running.You can remove panel to get to it and put your hand on it to see if it is on. If the lines were of normal temp. and the compressor is not on, more than likely you have lost the charge.Look it over, the wiring to see if you see anything burned or connections burned off and so on. You can check the 3 wires going into the compressor by turning off the power at breaker and removing the cap covering wires just to make sure these wires are intact. sometimes one will get hot from power and burn off. If you see this problem, it would be something you could fix.If all looks good, go back to the copper lines and being this is a Heat-Pump, you should have 3 fittings where we install our gauges to check and fill systems with freon. Look for one that is on the unit itself and remove the plastic cap.Don't be alarmed if you do as nothing will come out.If you look inside the valve, and you see a Schrader core, you can depress it with a nail or something small, just enough to see if it has a lot of pressure in it.If very little or none, the system is out of freon. You will have to call a tech out to find leak and evacuate and re-charge system.I wanted to give you many things to check so you and I would know what the problem is, a process of elimination. If you have a lot of pressure, then more then likely you have a faulty compressor. If you feel that you would rather not check the electrical or depress the Schrader, I fully understand.You can at least check the temp. of the lines and listen to see if the compressor is running, and if it is with warm lines it is still low on freon.Please keep me informed, and again the long explanation was for you to understand more about you're system operation. Sincerely, and best of luck,
Shastalaker7

Nov 23, 2009 | LG LA245HV Split System Air Conditioner

1 Answer

Ice formation in the indoor unit


you need to have the unit checked for the amount of freon in the system this must be done with a gauge set the freon amount is obviously incorrect
also the a-frame evaporator must be sealed in the furnace cabinet

May 28, 2009 | LG Heat cool Window Air Conditioner

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