I have had a ductless mini-split system in my property to help with indoor comfort for three years. I ensured I had an A/C worker from the local cooling corporation coming over for a routine air conditioner tune-up, however, even the best quality Heating and A/C systems still disappoint, and first, the digital control component stopped responding, & then the entire Heating and A/C replacement gave in. I had no idea what had happened since it was only a short month after the air conditioner repair had been done. I had to call the indoor comfort supplier & term it an emergency because it was still cold for them to send me an A/C professional without delay, and after a brief inspection, the cooling specialist found that the coil in my component was disfigurementd, so I was having trouble running it. Immediately after hearing the diagnosis, the expenses I would have to foot felt threatening, and luckily, the only thing I needed to buy were the coils available at the local Heating and A/C business. The specialist also advised that I could opt to change the entire component to an electric heat pump, which would save energy. I opted for repair. I should have known that the concern would persist or at least expected to continue dealing with the same issue every month. The second time the professional came around, she was keen to mention that my permanent solution was changing the entire A/C system. She had to show me an accounting sheet with the repair expenses versus the cost of a new component for me to snap out of my fantasy that repairs would be enough.