Air conditioner tune up at the old car service station

The new owner was transforming the old service station down the street into a modern, well-equipped auto service center, then i labor for an a/c company as an a/c rep, and the new owner called asking for a/c services. The shop would need more than an a/c tune-up, and I was the unlucky a/c expert given the task; well, depending on how you look at it. There would be possible a/c repair because I doubted anyone had bothered to care for the a/c when it was closed, then when I got there, the a/c installation was in disarray, just as I had anticipated. It was clear from the control unit that the heat pump was off, however it must have been running for a while, even after the shop was closed before they switched it off. I have worked in the a/c company for years, however the state of the a/c filter was rare. It had all manners of grime and filth. It must have been the same filter as the previous owners before they closed the shop. The cooling device surprisingly did not have a lot of technical problems, and after the cleaning, which took most of my time, especially myself and others cleaning ducts, the cooling products were as great as new. I hoped that the new owners would take better care of it so that it would serve them better. I would need to teach them more about a/c and how to labor the cooling technology so they can get the most out of it; Otherwise, they would constantly call for a cooling specialist on issues they could unquestionably avoid.
Cooling industry