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Hi everyone! I am new to this forum. I bought a newly built house 4 years ago with central air. Recently the A/C stopped working so I hired an HVAC tech to come take a look into the issue. I was told that there was no freon so he helped me recharge the unit. Less then 2 weeks later the A/C was no longer working. I called the tech back and he said there is probably a leak and that he would need to put in dye with a sealant and recharge the system again.
I am uncomfortable doing this because I feel that the tech should do this procedure and follow the lines to see if there is a leak since the system is pressurized. However he told me to call him if this does not fix the issue. So before I get him to do this I followed the lines from the A/C unit on the outside all the way into the air hanger. I was hoping to find some oil left behind by the leaking freon. No luck there. However, I did notice that the metal threaded cap on top of the high side valve (where you attach the gauges to) to be loose enough where I can twist it off. Also the black cap that protects the valve is missing the o-ring on the inside of the cap. Will this cause the freon to leak? Do you know what that part is called? Thanks for taking the time to read this!
I am uncomfortable doing this because I feel that the tech should do this procedure and follow the lines to see if there is a leak since the system is pressurized. However he told me to call him if this does not fix the issue. So before I get him to do this I followed the lines from the A/C unit on the outside all the way into the air hanger. I was hoping to find some oil left behind by the leaking freon. No luck there. However, I did notice that the metal threaded cap on top of the high side valve (where you attach the gauges to) to be loose enough where I can twist it off. Also the black cap that protects the valve is missing the o-ring on the inside of the cap. Will this cause the freon to leak? Do you know what that part is called? Thanks for taking the time to read this!
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