My buddy could have ruined our HVAC or voided the warranty

It was bizarre because the air filter was entirely dirty plus I wondered then if that could be the issue

When our HVAC system was making squealing noises in the summer, I was wondering what in the world was wrong with our HVAC. My buddy was there plus he said he thought he knew what the issue was. He insisted that all of us shut off the power to the A/C condenser unit plus check the motor. He said that you are supposed to add oil to the fan motor to stop it from squealing savor that. I asked him how he knew that if he wasn’t an HVAC professional plus he said he found that information online. Well, I went online when he was trying to take apart the A/C condenser to add oil to the fan motor. Fortunately, I found information that not only will you void the HVAC if you try to work on it yourself, however you entirely cannot add oil to the fan motor. I showed him that plus he said it was a good thing I double checked. The two of us put the thing back together plus then all of us told him I was just going to change the air filter before calling the HVAC professional to have a look at the system. It was bizarre because the air filter was entirely dirty plus I wondered then if that could be the issue. When I put a fresh air filter in the HVAC machine, suddenly the squealing sounds went away plus it operated savor normal again. My buddy shouted, “You fixed it!” I didn’t know the issue was as easy as having a dirty air filter, however our buddy said he learn somewhere that’s a entirely proper issue. I wish he would have suggested that in the first locale before trying to open the A/C condenser unit.

air quality