I called 5 times and got redirect. Then found out they close early. So if you live in Texas you are short an hour. Also if you own Carrier A/C there not compatible with the Nest or any other thermostat brand. You cant even use a cheap one. You have to buy carrier brand thermostat which cost $650 bucks. So my sisters thermostat messed up due to multiple renters not taking care of it. Now she has to cough up $650. Why wasnt she warned this pior to installing a Carrier A/C unit??? A heads up would have been nice like hey if you ever need to or want to upgrade its gonna cost you. So what Im saying you CAN ONLY USE CARRIER BRAND THERMOSTAT.

I bought a house from Toll Brothers which specifies (must be a cheap price because the product is really bad) Carrier Heating & air conditioning units. I thought new heating and air conditioning units were to last about 20 years. Within 6 years of purchase, the 4 ton unit condenser and coils had to be replaced. Then at 9 years, my 3 ton unit had to have the same parts replaced on it. Then at 7 years after replacing the condenser & coils on the 4 ton unit, I had to replace these coils again. Now at year 14, I am having to replace the coils on my 2 ton unit. The total cost of maintaining my Carrier units is nearing $20,000. Carrier products are so bad that I heard a local school district will not allow Carrier products to be used on any new schools. How can Carrier get away with making such a sorry heating & air conditioning unit. If I bought another Toll Brothers house (which I will not), I would require them to replace the entire Carrier systems.

Try getting techs that respect your vehicles and brand they represent.