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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

    "Sierra, LLC has been our AC experts since we moved in our new home 3 years ago. They are reliable, honest & do a great job."

  • 5

    "Wayne Eady, Sierra HVAC Service Tech. One of the BEST we've ever had! Knowledgeable, polite, courteous! Answered every question. Did not waste his time or ours. Wayne is best remembered for being conscientious & thorough. Five stars for Wayne Eady! ..."

  • 5

    "My main AC unit stopped working on a Monday morning 8/28. I called Sierra Air Conditioning (who installed and service the unit) and was given a service call time range for the same day. Very important given our 105 degree plus temperatures. Laura ..."

  • 5

    "Matt arrived on time as promised. Office called 30 minutes ahead to let me know that he was on his way. Very polite and efficient. Matt did the spring-summer system inspection. New system was installed last year - September so we are still on our ..."

  • 5

    "I'm so grateful for Sierra Air and Wayne E!!! We purchased a 22 year old home and knew the A/C was old so I wasn't surprised when our house wouldn't cool down this week. My husband contacted Sierra Air and they scheduled a technician to come out the ..."

  • 5

    "Today, Thur, Mar 23, 2017, Jared provided us an inspection of our air conditioning. The best i can say about him may not be sufficient. He was professional, courteous, and knowledgeable. He even took his booties off and on after i told him he didn't ..."

  • 5

    "We called and they sent Wayne out to check out AC units. He was prompt, professional, friendly and very thorough! We appreciated his efforts to resolve our AC issues! Great service from Wayne E.!"

  • 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

    "Sierra Air have been servicing our home since 2011 and I only have praises for them. They're very flexible with scheduling services and their technicians are punctual and courteous. Their prices are reasonable and they always do a good job. But most ..."

  • 5

    "Great company to do business with. Installation was done quickly and I had very good workmanship with friendly service at a very good price."

  • 5

    "Shawn is very thorough. He explained what was done during the maintenance check-up plus he created a recommended future action list for me."

  • 5

    "Jeremy does a terrific job! He performed our summer maintenance today & I can't say enough with how happy I am with his service. He is professional, courteous & extremely polite. He answers any questions & goes out of his way to provide good service."

  • 5

    "My HVAC unit was serviced by Technician Pro Tyrone Kelly. He was professional and thorough and answered all of my questions patiently and knowledgeably."

  • 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

    "Great service, Adam was very knowledgeable and helpful. Explained functions, helped understand how to get the most from our system and found minor issues that would have been bigger issues in the summertime. Thanks!"

  • 5

    "Sierra Air Conditioning & Heating Service Technician Wayne Eddy preformed a maintenance check up on several properties for me. He was on time, thorough in conducting the maintenance service and gave a clear and concise synopsis of the condition and ..."

  • 5

    "I have had this contract for several years and have always received superior treatment from appointment making, great technicians and billing process. Darryl O. is very professional and knowledgeable. I know when he is here the job will be done perfe ..."

  • 5

    "Extremely pleased. They were able to work around my schedule. Greg P. was my service tech. He came to my house at 7:00 pm and quickly diagnosed the problem with A/C. His price quote was complete and $900 cheaper than another company gave me. I needed ..."

  • 5

    "Derik came out to my house (on time) and explained to me that my A/C units were not nearly as old as I was told by THREE other companies! He was up-front and honest with me about the age of my A/C and furnace and explained my options for maintaining ..."

  • 5

    "Jared arrived on time, very polite and courteous. He worked efficiently and quietly and did a great job checking out the air conditioning units and furnace. He gave me some good advice. Thank you, Jared."

  • 5

    "Wayne was great! He knew exactly what he was talking about and made the pricing very clear. I had so many questions and he answered them all! Super friendly and knowledgeable."

  • 5

    "Matt is a very knowledgeable person for this company. We had many people come here to find out why our system was continually shutting itself off. Thank heavens for Matt he was the first man to find the problem created by a previous worker. Matt is ..."

  • 5

    "Laura the office staff very nice, and Don that came out to the house very professional. It was for a check up to make sure everything was running properly getting ready for winter, I would advise everyone to do your maintenance yearly."

  • 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

    "Wayne E. provided excellent service for our two heater units, together with several helpful suggestions for maintaining continuing operation during the coming winter. Larry is an excellent representative for Sierra."

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