I laugh and cringe every time I remember my days as an apprentice in a local business that offered a/c service.
I was only 23 at the time and I think I made every mistake in the book.
There was this time I accompanied the air conditioning technician to a home where we were supposed to do an air conditioning repair service. After inspection, my senior went to assure the homeowner that it would only take us a few minutes to finish working on the HVAC unit. By the time he came back he found me staring at the unit wide-eyed and I had to tell him I had shorted out the compressor. He was livid since he had made it clear that I was not to touch anything before he came back, this meant that the work would take much longer than it was supposed to before my interference. During the training period, I found air conditioning installation to be the easier part since it was setting up the system using new air conditioning equipment. It has been eight years now of being an air conditioning supplier and I have learned so much more about air conditioning, it has become a second language. Gone are the days where I could not diagnose a bad TXV during air conditioning maintenance, right now I can even work on a commercial air conditioning system without breaking a sweat. I have also seen the number of homes with a dial thermostat reduce over the years as people opt for more advanced options. Being an ac workman had its advantages, for instance, I installed a ductless multi-split in my home with the help of a colleague making the service charge zero.