Whether you're installing a regular or smart thermostat, don't forget to turn off the air conditioning and furnace units before making any changes. If electrical wiring systems stress you out, hire a home service pro instead to get the job done.
Rico is a solid hvac service technician. He was thorough, professional and competent. He pointed out things that I never knew before. Also, he took his time and didn't fly out of here in 15 minutes like some other techs...
Update: Following my issues I paid for another company to diagnose the problems with my AC unit. They used a flourescent dye and determined that the A-Coil was was leaking and was likely defective when it was installed. ...