We had our chlorine generator & one of the pool pumps replumped ~ a year ago (there was a leak at the connection and pipes deformed under our AZ sun). A couple of months after that I turned on our air blower for the first time and saw that it did not create any bubbles. It would start, I could hear noise, but no bubbles. Every time I turned it off, it made a popping sound. I tried several times with the same result. Since we did not use our spa in winter, I forgot about it. I had the same experience yesterday when I turned on our air blower, but the second time around it would not even start anymore (at least I do not hear any noise coming from it). I do not think replumbing had anything to do with it -- probably it is just a coincidence, but I wanted to mention it in case they could have switched some valve. I have no idea how our spa air blower works.
Is there anything I could try to make it work or I have to leave it to professionals?