Question about Heating & Cooling
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Posted on Jan 02, 2017
I have heard that there is a spray you can use that will not damage your system and seals the leak when it comes in contact with oxygen
Posted on Apr 09, 2009
SOURCE: Central AC unit not cooling
If you have access to your piping system you may use a soap bubbles to test the pipe connection. the leak gas will blow the bubbles if there is leaking. But if your system is out off freon gas, you can not use this method. just try it check the connection first put the bubbles around it.
Posted on Jun 04, 2009
sounds like low freon or a blockage in one of the lines, especially since the you say only one row of coils is cool. usually window a/c's have at least a 1-year warranty and since you are pretty close to that, the manufacturer may honor it. if not you will need to have the system fitted with a bullet piercing valve on the low side lines and see if the unit is low on freon with proper gauges. if it is not showing low then there is probably a blockage and the high side should be checked as well. if this unit was an expensive one it could be worth having it repaired. a simple recharge may cost less than a replacement, but anything else probably won't.
Posted on Jun 10, 2009
SOURCE: i have a travel trailer
If it's leaking inside where filter cover is, then real good chance the drains being plugged is the only problem. If water (condensation) not running off roof when operating in cool mode, then I'd bet drains, which are located under unit on roof, and you should see them sticking down like buttons. They have a hole in side that needs cleaning with a pipe cleaner or similar to open them up. If need be, shut off power to unit and remove top cover on roof unit and look for the drain holes in base, and clean them out. If water comes in while raining, but AC not running, then it's gasket. That is remedied by removing ceiling assembly (just screws) and 4 bolts that pull/hold the upper and lower assemblies together, unplug wiring to upper unit, and simply lift it off, change gasket and re-install. Tighten those 4 bolts equally when gasket is aligned properly over hole, only until gasket is approx 1/2, original thickness. Plug harness back in and your done. (about an hours work.) Only other thing that may be wrong is styrofoam drip tray for cooling unit, under cover on roof may have a crack , allowing condensation to leak in. If that 's the case, you can try to find a sealant compatible with styrofoam to seal those cracks.
Posted on Dec 03, 2010
SOURCE: The front AC on my
This is an R-22 unit and it will work at very similar pressures to the home units that you have serviced...
You will find that it is a bit low and that the suction pressures will be down in the 50-55 range...maybe lower....get them up to at least 70 when the indoor temps are say 70-74.... they will be higher if you are warmer... also this is assuming 70-80 outdoor temps...if the outdoor is higher the pressures will be higher also...
In the worst case with very high indoor and outdoor temps. you may see 80 psi suction press.
This should give you an idea of what you are looking for...and charging that will fix your problem...
Posted on Aug 21, 2011
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