Thermostat User Guides
Sierra LLC Air Conditioning & Heating

Thermostat User Guides

Need assistance setting up or installing a thermostat? Contact us online or call (702) 830-7553 today to schedule a service.

For More information or to View Our Video Tutorials, please click here.

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Preferred Technician
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Taking Care of Our Customers Since 1987!

I trust Sierra, their techs know their stuff, and recommendations were honest and appreciated. We're looking forward to our third trouble-free summer with our 'new' Lennox system
“Today, we had an Excellent 'Springtime' Service call performed by Sean of Sierra LLC Air Conditioning & Heating. Thanks! - to their entire crew and office staff! I trust Sierra, their techs know their stuff, and recommendations were honest and appreciated. We're looking forward to our third trouble-free summer with our 'new' Lennox system, thanks to the professionals at Sierra LLC Air Conditioning & Heating.”

Lawrence & Becky S.
Matt is a knowledgeable and professional technician.
“Matt is a knowledgeable and professional technician. He is also personal and patient and addresses your concerns. My technician of choice and always welcome to our house.”

Nicholas & Irene D.
Great service and awesome employees.
“Great service and awesome employees. We were especially impressed with Jay our service technician. He was on time, very efficient and knowledgeable. He had a great personality and answered all of our questions.”

Dennis G.
Excellent customer service and professionalism
“I am so glad I contacted Sierra. They save me $10K. I originally contact Elite Heating and Cooling and they wanted to replace my entire furnace, coils and condenser in my air conditioner. When all I need done was the motor replaced in my furnace (less than $300). The part was still under warranty so I only had to pay for the installation. I'm so grateful to Sierra (Matt) for being COMPLETELY honest and not trying to sale me something I don't need. Excellent customer service and professionalism. HIGHLY RECOMMENDED.”

Billie
The people who work for Sierra LLC are exceptional.
“The people who work for Sierra LLC are exceptional. They are very knowledgeable and always know how to answer my questions and give me the best options. They are courteous and kind also, and I feel I can trust them to be honest. They are careful in my house, which is very important to me. They go above and beyond the minimum, and they take the time to explain everything to me. I trust the associates of this company with my heating and a/c needs which is as important as choosing a doctor in this town. When so many companies only care about how much money they can get, it's nice to be have a company like Sierra.”

Athena & Richard B.