Best Full Home Renovation in Phoenix AZ

Howard Air installed a mini split unit in my home a year ago. We’ve had a few problems with the unit ( one requiring a new heat exchanger that took two weeks to get) and now I have a flashing LED on the indoor unit. When the LED flashes, the unit will not run. I called Howard Air to inform them of the problem. And even though I have a 10 year warranty, they told me I had to pay $98.00 for a diagnostic test. I was surprised by this but I paid it. When the tech arrived he thought there was a transformer issue, but he called someone and they told him to pull the main power breaker, wait a few minutes and plug it back in. The reset seemed to work until the next day when I got home to a warm bedroom and a flashing green LED. That prompted me to call Howard Air again. They were curious and all and I was given a Thursday morning between 7 and 12:00. I also received TWO confirmation emails. I stayed home all morning waiting for someone to arrive, and at 3:00 PM I called and was told the appointment was in the afternoon!!! I then read word for word the email I was sent, and was told there was a mixup. Now I have to wait until Monday. Heck of a way to run a business