[color=#333333]Hi Folks,[/color] [color=#333333][i]***Okay I am trying to repost this***I don't want to do any recharging myself or ask who should do it**I just want to find out information about a schrader valve and why there might be dry green dye on a line next to it****[/i] I am trying to determine the most cost efficient method of tackling a couple AC problems. I have had problems with AC not cooling enough. Last year under home warranty I had them come out and they put in a new compressor and condenser. I wasn't exactly thrilled with the company that troubleshot the problem since they had to come out multiple times but that is another story..) This was last August and they found a leak supposedly corrected it after injecting dye into it and coming back to check for leaks. Ran fine rest of summer. Fast forward to this spring and same problem ( not cold enough) so I suspected a leak.[/color] [color=#333333]Had a company come out and check and the pressure is at like 6 lbs instead of 150 lbs so guy goes definately a leak. Checked the evaporator and it looked fine but he said it was an old evaporator with a max 300 lbs pressure and with the new compressor they added 410a which could be a problem and they should have swapped out the evaporator last year to address that potential issue.[/color] [color=#333333]So here is the report from that company:[/color] [i][i][i]"hooked gauges up to the system and found that it is almost completely empty of refrigerant. looked around and noticed Uv dye was added to the system so did a quick check and found some of the UV dye around the fittings at the condenser. Checked under the service valve caps and found the liquid side blowing bubbles from what looked like leak testing bubbles? and or refrigerant. Checked inside the home and found that a new 410A condenser was hooked up to an old existing R22 coil which is not rated to handle the pressures of a 410A system. To fix the leaks would recommend replacing the liquid service valve and also removing the fittings close to the condenser on the vapor side and rebrazing new ones on. Also with the pressures running through that old evaporator coil it could easily blow out any of the joints due to the age alone.[/i][/i][/i] [color=#333333]So three questions :[/color] [color=#333333]1.Okay so there appeared to be a leak at the schrader valve hence the bubbles. Are products you can use to seal this ? Like a sealant? I can't recall the name he mentioned to seal it..[/color] [color=#333333]2. The line you see with green residue on it ( that he mentioned to cut and rebraze). He couldn't confirm that that area was actually leaking or was residual from the schrader valve leaking on to it etc. I said I don't want to do that unless it is confirmed the line itself is leaking.[/color] [color=#333333]3. Is the 300 lbs. max evaporator coil something I need to address right away or can it wait? My understanding is R22 is being phased out and hence why the new condenser uses 410a.but does this mean everyone out there who puts a new condenser in on an older system has to swap out everything (evaporator coil) to conform?[/color] [color=#333333]Ideal scenario I think is seal the schrader valve and then have a professional recharge the system (if line with green on it is not leaking)...He said the schrader valve alone could take it down that much if it was leaking (from 150 lbs to 6 lbs over 8 months) using the analogy of a leaking bicycle tire...[/color] [color=#333333]Can you provide insight please? I appreciate your time![/color] [color=#333333]Best,[/color] [color=#333333]Kevin[/color]

Hello, My AC unit (mse-12crn1-bq8w) recently started having some troubles. A few nights ago after I turned it off the outside unit continued to run even though the inside unit was off, this caused a build up of snow/ice on the inside unit. I reset the breaker and cycled the unit a few times into a different modes but it didn't help. I also opened up the outside unit made sure the board was cleaned up of anything that may short or otherwise compromise it. Does anyone have any idea of where to start? This unit has been in use for 8 years without significant issues (this happened before but went away, as well as another issue that was resolved with outdoor cleaning). Thanks! --Phil