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(702) 830-7553
24-Hour Service

Thermostat User Guides

Bryant Legacy Series Non-Programmable
Honeywell FocusPro 5000
Honeywell Lyric Round Wi-Fi
Honeywell Lyric T6 Wi-Fi
Honeywell Pro 4000
Honeywell True IAQ
Honeywell Vision PRO TH800 Series
Honeywell Vision PRO Wi-Fi Model TH8320WF
Lennox iComfort Wi-Fi
Trane XL824 Smart Control
Trane Nexia 524

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

Video Tutorials

  • Honeywell Pro 4000 Series

  • Trane XL824

  • Trane 524 Touchscreen

  • Bryant Legacy

  • How to Set Up a Honeywell Wi-Fi Thermostat

  • How to Set Up a Sensi Wi-Fi Thermostat

  • How to Set Up Your Honeywell Lyric T6 Pro Wi-Fi Thermostat

  • How to Set Up Your Honeywell Lyric Round Wi-Fi Thermostat

Superior Service That Soars Above The Rest

  • 5

    "I just wanted the world to know how grateful I am to have Sierra, LLC come to my home today to explain and adjust my heating system. Jesus S. was courteous, detailed oriented, showed high technical expertise, knowledgeable, sociable and dedicated to ..."

  • 5

    "Al was extremely professional and took time to explain to me the overall condition of my units and what to expect in the future as far as reliability. I appreciate his efforts and will request him for my next service"

  • 5

    "Sierra Air Conditioning & Heating gets a 5-star review from me. The office staff is helpful in arranging an appointment, and the service person arrived as scheduled. They are neat and efficient in their work."

  • 5

    "I don't do reviews...EVER! In this instance, however, the repairman totally exceeded my expectations to the point that I feel it would be beneficial to others seeking honest, competent and efficient A/C service and repair. Wayne arrived on schedule ..."

  • 5

    "Tyrone K. was courteous and very knowledgeable. He explained the mechanics of our system in terms we could understand."

  • 5

    "We maintain a service contract with Sierra and we are grateful for their expert work and great service! Tyrone did a great job and he was very knowledgeable and friendly. We have had a wonderful experience every time!"

  • 5

    "Dina was terrific in working with me on scheduling and Tyrone was fantastic at servicing our units. He explained what was needed and recommended things for us to consider in the future to keep our units running well and more efficiently. Totally ..."

  • 5

    "Consistent, professional concern, pleasant and informative staff and especially Tyrone while administering a maintenance check of our heating/cooling system. Very nice experience that bolstering our confidence that they will be there when we need the ..."

  • 5

    "Al was thorough, meticulous and obviously very experienced. I appreciate the issues that he found and took care of and his attention to detail."

  • 5

    "Just had some warranty repair work done by Carlos. He was professional, patient, fixed our problem and did a fantastic job. Thanks Carlos, for all of your help!!!!!!"

  • 5

    "Appreciate the professional and efficient service. Gregory was wonderful!"

  • 5

    "We have been doing business with Sierra Air for 6 years now, ever since we had our home built. Every tech that they have sent us in the past has been very knowledgeable and professional and courteous when using their slip on covers for their shoes ..."

  • 5

    "It doesn't GET better than this! After a week long dragging of feet and a major struggle with a competitor, I called Sierra, LLC and was thrilled to speak to a local office (not a call center). Jeremy was out same day for a diagnosis and quote, and ..."

  • 5

    "Lovely and knowledgeable conversation with Yvonne. She explained all the different options and she arranged the maintenance plan over the telephone, and the service will take place within 24 hrs. Highly recommended."

  • 5

    "I have used Sierra for the past 4 years, and can't say enough good things about them. Customer service rep Yvonne was so polite and professional."

  • 5

    "Matt was very knowledgeable and responsive and did a great job explaining the work he had completed."

  • 5

    "Tyrone is great! Tyrone did a complete check up of our two HVACs and even replaced a failing capacitor in one of them. Very friendly, clean worker, and expertly qualified. Robin did a super job of scheduling Tyrone's visit so he could come earlier ..."

  • 5

    "On time service! Yvonne was pleasant and courteous when she called to set up my plan and schedule the appointment. I was notified a few minutes prior to the arrival of Richard. He went about the service and was detailed in explaining what was taking ..."

  • 5

    "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."

  • 5

    "I had service on my Heating Unit today and it all started with the office staff. Yvonne B. called a few times to let me know when service was being performed. She was so very nice and polite on the phone with me. She was very professional. When the ..."

  • 5

    "Called Sierra, LLC to repair a hole in insulation on a line to my outside unit (main unit is in attic) and routine twice-yearly maintenance. Jeremy B. was my field service tech and I learned so much about my 12 year old unit due to Jeremy's thorough, ..."

  • 5

    "Superb effort getting the new A/C system installation completed. Very impressed with Derik K. and the entire Sierra, LLC team. Highly recommend Sierra, LLC."

  • 5

    "The carbon monoxide monitor started beeping with the sign "GAS" on the screen. Called Sierra, Kesha answered and immediately sent a technician Matt B. to investigate. Upon arriving Matt didn't find gas (thanks God), the monitor was faulty. Matt ..."

  • 5

    "Great Service! Friendly, informative and took time to thoroughly inspect everything. We have a Home Warranty Service but still look to Sierra for their expertise where our HVAC system is concerned...They're the best!"

  • 5

    "Al arrived on time for a maintenance agreement service call. He introduced himself and was very polite and friendly. He explained what was going to happen and what he was checking for. He put on his "booties" before entering our home, and was very ..."

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