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I have a panasonic split.cooling not working,small copper line to outdoor unit seems to be freezing.checked filters,draintube and all is clean.attempted to run heating and wont start.

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You must check the r22,or410a and you must plus freon.

Posted on Feb 25, 2009

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Related to cooling


Sounds like you have poor insulation in that room or the unit is undersized for the room it is cooling. It should not get hot quickly is there is good insulation and is big enough to do the job. Since you do not mention the age of your home/room or the size of the room, I can't be more specific. The number of turns may or may not be an issue. Depends of which of the lines are taking all the turns. Are the lines insulated? If they are overly long this could take longer to cool down but not much else if the system in full of Freon. If you do not feel cold air coming out of the unit at all and the compressor is running then check the air filter. If it is the littlest bit dirty and the unit is undersized for the room then any restriction would make it even more ineffective.

Apr 20, 2014 | LG LSC121PMA Split System Air Conditioner

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Why does my A/C blow little to no air, that's not cold, and how do I fix it?


Air Conditioner freeze ups cause an A/C to blow little to no air through the vents, and the air is usually warm.

There are three basic reasons for air conditioner freeze ups:
  1. Insufficient air flow
  2. Low Refrigerant charge
  3. Outdoor temperature
1) The two most common causes of insufficient air flow are dirty filters and under sized ducts. A dirty filter limits air flow which in turn allows the cooling coil’s temperature to drop below freezing. Replacing the filter, monthly, usually alleviates this problem. Under sized ducts will also cause the system to freeze because it also limits the amount of air flowing over the cooling coil. This results in lowering the coil temperature and allowing the humidity in the air to collect on the coil and freeze.

2) Low Refrigerant Charge. The refrigerant system teeters on a delicate balance. If the system is not charged correctly, the system will not function properly. This malfunction may result in the poor cooling output and/or freezing up. Only a qualified, certified service technician can properly test and charge a refrigerant system. Check your small high pressure line (should be hot) and low pressure line (should be cold, but not frozen).

3) Outdoor temperature. If temperatures are too low, the system will not operate properly, and freeze up may occur. The outdoor unit does not function well in temperatures below 60 degrees F. A special “ambient temperature” control must be installed to allow the unit to run properly in cool temperatures, or you may open your windows and save energy. If the A/C is set lower than 70 degrees F, special adapters are required to be installed.

on Jul 10, 2010 | Air Conditioners

1 Answer

Hi...my split Ac donot cool down the room temperature....even outdoor unit is working....


Even though the outdoor fan is running it may not have the compressor on, one quick way to check is to grab the large copper line going to the outdoor unit to see if it is cooler than the small line. Another way is to open access panel and use a amp meter. If the compressor is running it may be low on freon, if not running it could be burned, loose wiring connections, bad capacitor or bad compressor.

Aug 24, 2011 | Air Conditioners

1 Answer

Cooling not cold


Hi, This is called a split system heat-pump. If it was cooling and stopped and cooled again and now stopped, you need to be sure the outdoor unit is working properly. You can only check certain things as they require special gauges and know how. Make sure the condenser fan is on and reach down where the 2 copper lines are when it is on. Grab hold of the large line which is the suction side and it should be cold enough to condensate. The smaller is the liquid line and should be warm in the cooling mode.If not, listen to see if you can hear the compressor running inside of it. Should hear a humming sound. You can carefully remove the control panel door and feel it to see, but BE CAREFUL! Don't get your hand in the fan blade. Do these checks and get back to me when you do and we can go from there.
Sincerely,
Shastalaker7

Jan 05, 2010 | Air Conditioners

1 Answer

MY RAMSOND MINI SPLIT HIGH PRESSURE LINE IS FROZEN EVERY TIME I TURN THE UNIT ON


The expansion valve or the capillar tubes are inside the condenser and the gas (freon) is already expanded right outside the condensing unit all the way to the evaporator and beacause the diferential of temperature between this copper line (which is not high pressure anymore) and the outdoor air , there's condensention that freezes up.

Oct 15, 2009 | GE Quiet-Aire Ductless Split System Air...

1 Answer

Sanyo split high pressure side tube icing


ok, on these units, if by high side line you mean the small tube going from outside to inside, that tube is actually on the low side, the metering device is in the outdoor unit. If you shut the unit down, let everything thaw then restart and find that small tube is freezing up right at the outdoor unit right away, my guess is its low on charge. I see that you put some in, make sure it is the right knid of refrigerant. they do not hold alot. Where is your suction pressure running. If you put 2 to 3 pounds with no change, you may have overcharged but that is telling you that there is a restriction in the line inside the outdoor unit, probably the filter if it has one, or the metering device itself. Let me know what you find.

Jun 16, 2009 | Sanyo Split System Air Conditioner

1 Answer

My airconditioner lines keep freezing up


Your filter is plugged, or the refrigerant is low, or it is getting too cold outside overnight (less than 60degf)

1) The two most common causes of insufficient air flow are dirty filters and under sized ducts. A dirty filter limits air flow which in turn allows the cooling coil’s temperature to drop below freezing. Replacing the filter, monthly, usually alleviates this problem. Under sized ducts will also cause the system to freeze
Because it also limits the amount of air flowing over the cooling coil. This results in lowering the coil temperature and allowing the humidity in the air to collect on the coil and freeze.
2)Refrigerant charge. The refrigerant system teeters on a delicate balance. If the system is not charged correctly, the system will not function properly. This malfunction may result in the poor cooling output and/or freezing up. Only a qualified, certified service technician can properly test and charge a refrigerant system.
3) Outdoor temperature. If night time temperatures are too low, the system will not operate properly, and freeze up may occur. The outdoor unit does not function well in temperatures below 60 degrees F. A special “ambient temperature” control must be installed to allow the unit to run properly in cool temperatures, or you may open your windows and save energy.

Jun 05, 2009 | Air Conditioners

2 Answers

York Mini-Split Not Cooling? : (


This can only be a gas problem.
the split units goes on on and off if a shortage of gas is involved, the chances that you would here it wont be that big for the fans would make too much noise.
get a repair man for a re gas and all is well.

Good luck.

Wouter.

Oct 21, 2008 | Sanyo 09KS51 Mini Split Air Conditioner

1 Answer

Lg split indoor fan runs non stop


Hello Hamid,
The unit is designed to run the indoor fanmotors continuously when in cooling mode on both indoor units (evaporators). The reason is that this circulates the air and the temperature thermistor or sensor is able to sense return air temperature and in turn start or stop the outdoor unit and compressor as required according to the setpoint temperature. The reason for either unit not reaching setpoint temperature can be a couple of reasons. A) Incorrect design - the unit may be too small for the application. You can calculate this roughly at 650BTU per square meter of room in a relatively warm ambient climate. Or secondly B) The outdoor unit has leaked and is short of refrigerant. You can check this when the outdoor unit is running by feeling the thicker copper tube on the right hand side of the unit. This should be cool to cold. If no temperature difference is felt, it is short of refrigerant. Hope this helps you. Goodbye

Aug 11, 2008 | LG LS-L1210CL Mini Split Air Conditioner

2 Answers

Not cooling


can u give me more info? have you felt of the large copper valve at the condenser? have you checked your air filter? get me a temperature reading of the large copper line and the ambient air around the condenser, and out going air of the condenser. also what is the sq. ft. of your home, and the model # of the indoor and outdoor unit. thanks J

Jul 12, 2008 | Ruud Matching Split Air Conditioner

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