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Why does my T V R Leak ?. - Honeywell Heating & Cooling

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R V Chadwick

Posted on Nov 13, 2008

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WHAT IS THE BEST WAY TO DETECT THE REFRIGERANT LEAK BY THE SOAPY WATER OR LEAK DETECTOR?


a leak detector is by far the best method as the gas will show up under the light where it will not run with out gas so soapy water has a limited ability to show a leak

Aug 08, 2015 | Heating & Cooling

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True frezer is loosing charge in 3 days cant hear leak with nitrogen and has dye in it but looses charge in 3 days what is the best way to find the leak


Hi, be sure you are putting enough pressure with the nitrogen tank and get your self a bottle of gas leak detector at any hardware store, soap up all the fittings you can get to. About 200 p.s.i. of pressure will force the leak. When a unit leaks, it will leak at the weakest link on a system, so the weakest is the valve stems where you charge it. If you have added a dye solution, do you have the blue light that comes with the dye kit to find the leak? I will bet if you are loosing freon at that rate, you have a leak in the evaporator coil. I leak check units every day, and if you have soaped down all of the lines, fittings and so on, 95% of leaks I find are in the evap. coil. Check the cap tube, as a lot of times I have found leaks from them rubbing against any metal parts and rubbing a hole in the line due to vibration from the compressor. If you are using dye, you need the U.V. lamp to scan all parts to find the leak, you can't see the dye with your eyes, only when its dark and with the uv, ultra violet light to see it. It will show up a yellow color. Pay good attention to where the liquid line feeds the evaporator coil and the capillary tube are insulated. You may have to peel it off, sometimes I have found the leak under the insulation. A box that size does not hold a lot of freon, so get to the evaporator coil, use the U.V. light, and get the soap, it works wonders for leak detection. Please let me know. I will wait to hear back from you. Good Luck, you will find it!!
Shastalaker7
A/C, Heating, & Commercial Refrigeration Contractor
PS, when using the U.V. lamp, get a tarp to put over you to keep it as dark as you can. Scan areas at least 2 to 3 times.

Mar 14, 2011 | Heating & Cooling

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I HAVE SPLIT UNIT AND THE COILS ON THE OUTSIDE ARE FREEZING UP I'VE HAD THE FREON CHECKED IT ONLY DOES THIS WHEN IT AROUND 35 OR BELOW


Gas leak in your system. Don't run the unit further as it will pump the oil from compressor. Find leak by pressuring nitrogen up to 300 psi.And with soap solution you can find leak. Even with leak detector you can find.

After finding out the leak arrest with brazing and then recheck for pressure hold up. Vacumise and then do gas charging. Please call repairman to do professional job.

Dec 27, 2010 | Heating & Cooling

1 Answer

I have a Pinguino PAC 190 floor model that blinks PF what does that mean?


PF- error code means shor of gas/gas leak. It's not advisable to charge gas without finding out the leak.
To find out leak, remove all gas and then charge Nitrogen pressure up-to 300 PSI and then with soap solution or leak detector element you can find the leak. Arrest the leak by brazing/welding, Again pressurize with nitrogen to confirm no more leak. And then vacumize and do gas charging.

Dec 14, 2010 | DeLonghi Heating & Cooling

2 Answers

I need to find a leak in my Carrier Air Central Air cond. I'm thinking it may be the A-coil as it keeps freezing up. Can I use compressed air and soap/water spray around the A-coil to check for leaks?


You cannot use compressed air as it will introduce moisture into the system. You can use dry nitrogen. Prior to searching, look your system over and look for oil.........oil will leak out with the refrigerant and often times you will notice the oil collected in the area near the leak. After pressurizing with dry nitrogen, you can use a soapy mixture to search for the leak. Leaks in the A-coils are commonly found near the tube sheets; however, they could be anywhere in the coil. Good Luck in Your Endeavor!!! :-)

Apr 21, 2010 | Heating & Cooling

1 Answer

LG A/C SPLIT UNIT, DURING DAYS WE WERE SMELLING GAS THEN SUDDENDLY ITS NOT COOLING ANYMORE, SO WE THINK THERES A LEAK, HOW TO FIND IT AND FIX IT?


you will need a pair of guages and some nitrogen. put pressure to the lines and listen for the "hiss".rubbing soapy water on the area where you think the leak is at will make bubbles (the leak). another way is dye but i do not reccomend it. once you find the leak you run into the problem of soldering the leak and recharging the system, which requires an epa license for the purchase of refrigerant. yout best best is to call the pro's. this is tedious work.

Oct 08, 2009 | LG Heating & Cooling

2 Answers

2002 TRANE XE 1000 AC - small leak


that is no longer considered a small leak. having to add freon every 5 years is a small leak. you have a massive leak and it needs to be repaired or replaced imediately. you could be charged for freon release by the epa. check the coils and every joint and valve for oil drops or seepage or actual air leaks. for something that bad, you could use soapy water (dish soap) on the joints. where it bubbles is your leak. do not use soapy water on the evaporator (cold) coil. regardless, you need it repaired or replaced and it turned off until you can do so. it's either pay the epa $32,500, or get a new ac.

Jul 29, 2009 | Heating & Cooling

2 Answers

From where normally freon leak in central air condition system


Stuff frozen is usually where the leak is. It's under high pressure and when it leaks out the pressure drop causes the freeze.

Cost to fix is a guess depending on where it is. If the evaporator is what is leaking, you probably have to buy a new one and it'll be $1500-$2000. If an excessible line is leaking, it probably won't be all that much for them to solder it.

Good luck.

Jun 19, 2009 | Heating & Cooling

1 Answer

2 year old heat pump. had constant problems with both units. Have had 3 different HVAC groups out of time to evaulate problem. Replaced compressor on small unit this past summer and thermostats on both...


Look for signs of oil and you will have found the leak. Compressors depend on the cool gas returning to help cool the inner motor. At 12 pounds to recharge and leak detectors that measure less than .5 Oz per year leak rate does not figure that the leak can't be found.
10% of the oil from the compressor circulates with the refrigerant. The gas leaking will dissipate but the oil at the leak point will still be evident.

May 01, 2008 | Heating & Cooling

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