Question about Goodman CLQ36AR49 Air Conditioner

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Missing insulaton on the suction line.

With insulation missing on the suction line could liquid refrigerant get back to the compressor and cause damage?

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You would not get liquid refrigerant back to the compressor because of missing insulation. Please let me know if you need any further assistance.

Posted on Feb 19, 2009

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1 Answer

Which line is the low side on my chest freezer ?


Ok, basic refrigeration here. The 'high side' contains the high pressure vapor leaving the compressor and going to the condensor to condense into a high pressure liquid. The 'low side' contains low pressure refrigerant vapor within the evaporator and the suction line back to the compressor. The same amount of vapor has to return to the compressor as left the compressor. So thinking about pressure solves the problem....High pressure equals small line...
Low pressure equals larger line. The low pressure vapor will fill a larger space than high pressure vapor so it has to travel in a larger line. The suction side is the bigger of the two and if the unit is functioning, it will be the one cooler to the touch.

Though this is basically correct in theory, it is not a totally perfect way to descsribe an answer to your question, but it was fun to try.

Jul 03, 2014 | GE Freezers

1 Answer

AC hoses leaking


The condensation will be mostly forming on the suction line to the compressor . It is the moisture in the air forming water droplets when the air hits the cooler pipe. The refrigerant boils off inside the line because of the low pressure cause by the sucking action of the compressor and this boiling off reduces the temperature of the line and so the condensation forms . It will be the larger of the 2 pipes and if this condensation is causing concern then there is a form tube that you can get from the rubbers shops that you can wrap around the line and this insulates the line and so the condensation will not form. When the system is working properly you will notice that the smaller line will be quite hot as the compressor compresses the refrigerant back into a liquid so that at the TX valve in the evaporator(inside the car) releases the liquid into the vacuum created by the compressor sucking on that line. The heat in the car helps boil off the liquid to gas and in doing so removes the heat from inside the car . As it is doing this there is condensation forming on the evaporator fins that drains off out a tube to outside under the car ,hence the pool of water on the road as you drive off.

Apr 20, 2014 | Ford Ranger Cars & Trucks

1 Answer

All the coils on the unit outside froze up


Hello, if the inside fan was not running then the evaporator coil cannot absorb enough heat to vaporize the refrigerant, and the suction line will freeze including the compressor. Liquid refrigerat instead of vapor passes thru the suction line into the compressor. Lack of airflow or a low refrigerant charge is what will cause the line to freeze. In your case it was no airflow

Jun 14, 2012 | Goodman Heating & Cooling

1 Answer

Hi, I bought my Frigidaire refridgerator in June 2002. Within a year the compressor had to be changed. In November 2009 the compressor died again. A new one was put in. Last week it quit again. The...


Who is performing this service ? The line he is referring to is the liquid (capillary tube) suction line which is welded together for proper heat exchange. If that is the case then this should be addressed by the manufacturer. Was the system properly evacuated and a new drier installed ?
Was the condenser clean ? The newer refrigerants along with overheated systems cause any moisture in the system to release salt which mixes with compressor oil. This sludge clogs up the capillary tube stopping refrigerant flow.

Jul 13, 2011 | Frigidaire Refrigerators

1 Answer

The air conditioner comes on but the motor fan dose not turn. I did rap new insulation around the copper pipe including the small pipe. I have just remove the small pipe from the insulation and now...


Hello, the smaller pipe is your liquid line, this line should never be insulated. The bigger pipe is your suction line and it should always be insulated to prevent condensation and so the refrigerant does not absorb too much heat going to the compressor. However, that should not affect the fan not coming on. It sounds like maybe a wire came loose somwhere going into the ac as you were wrapping the insulation.

May 08, 2011 | Heating & Cooling

1 Answer

How compressor will be installed technical information R-404 2ton reciprocating


1.Recover refrigerant from system

2.Remove suction and discharge lines

3.Remove electrical components

4.Remove old compressor

5.Install new compressor

6.Install electrical components

7.Install suction and liquid lines

8.Remove old drier and install new one

9.Connect gauges and evacuate from both high and low sides to at least 500 microns

10.Charge system and check for leaks

Dec 29, 2010 | Refrigerators

1 Answer

My whirlpool acq128xp0 runs great one day, then barely starts the second day, It doesnt have the air volume or cooling it use too. Just started this year. Mike


Mike, when you stated it barely starts, to what are you referring? The compressor (condenser) section has an issue when starting or the indoor fan is hard to start?

If the fan does run, and the condenser unit outside is operating and you are getting lower than usual air flow (compared to previously), you may have a dirty filter, or you may have other obstructions at the evap coil inside the furnace or air handler. It could also be the unit is freezing up and ice on the evap coil is cutting down the air flow. Chances are if the coil is freezing over, you will have two issue that cause this:

Air flow issues (dirty coil, clogged air filter, or other obstructions across the evap coil, such as a plastic bag or pet hair, dust, ect.) which will also cause the coil to freeze over.

The other issue that would cause the low air flow is ice that is a result of low refrigerant.

If the system ran fine in the past, I will rule out it may be inproperly sized. Have you recently had a fan motor replaced on the indoor unit. If so, and they under sized the fan motor, then it could be the fan is not drawing, or blowing enough air across the evaporator coil and this will cause it to freeze over.

Look for ice on the suction line (piping) which is the bigger of the two lines coming from the outside unit (condensing unit). It is also the line that has the insulation covering it. If it has ice on it, then freezing is occuring on the evaporator. If so, then airflow issues, or refrigerant levels are usually the main culprits.

The two lines (suction and liquid) running between your indoor and outdoor unit should feel the following way to the touch of your hand:

Suction should be cold and possibly sweating if exposed (in places where no insulation is present).

Liquid line (smaller line) should be warm to the touch, but not too hot, or too cool. Should feel close to the outside ambient temperature if felt by hand.

Look these issues over and let me know.

Scott

Sep 04, 2010 | Whirlpool Heating & Cooling

2 Answers

Copper pipe in back of fridge frozen , fan is moving but feel no air blowing in fridge..or freezer...


That is called a " cap tube separation " . It can be caused by overlooking a defrost problem for too long . If the coils inside of the freezer frost up , that frost , will eventually work its way out thru the back toward the compressor . When it does this , the " low side ( suction ) " , receives liquid refrigerant , instead of gas . This liquid refrigerant , will destroy the compressor internal valves , causing it to loose the low side . ( Never charge a refrigerator low side with liquid , only gas . The high side can be charged with liquid . ) A cap tube separation , is when the pressurized ( causes heat ) cap tube , becomes separated from the low side ( suction ) tube , causing the suction tube to frost up , due to the cap tube no longer attached to it . When this happens for too long , the only repair , is to replace the compressor AND repair the separation , with wire ties , thermal putty sealant and aluminum tape .
I apologize for the technical explanation , but there is no other way to explain it .

Nov 21, 2009 | GE Refrigerators

1 Answer

Model GSC130481AG, S# 0808548576 The common wire to the compressor rubbed through the wire insulation and melted a hole in the discharge line from the compressor. Upon loosing all of the refrigerant the...


You have a restriction in the system. Probably in the TXV or orifice in the A/H.
The burn out sent trash/fragments through the system. I would open the sytem and blow nitrogen through, then pull a deep vacuum.
You may need to install a low side filter/drier. When you open the system change out the high side drier again for sure.

Jun 26, 2009 | Goodman Heating & Cooling

1 Answer

I keep finding water coming from underneath the chest freezer.


How old is this chest type freezer. The newer freezers have foamed in place insulation which also prevents moisture from migrating into the insulation. Raising the freezer by putting rollers under it would allow more air circulation under the freezer to evaporate any condensation.

How often is this freezer defrosted? If frost buildup is heavy the gases returning to the compressor will be colder and may cause frost on the compressor suction line which will defrost between run cycles. The frost will melt off of the suction line during the off cycle and could be the cause of the water you are finding.

Off the wall, if you have a male dog he may be doing his thing causing what appears to be water from under the freezer. :)

Jul 29, 2008 | Refrigerators

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