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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 T4 Pro
Honeywell T6
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

    "This is my third year using Sierra Air to handle all my HVAC maintenance. They have been excellent in the past and I expect nothing but excellence in the future. The office staff, and in particular, Yvonne, have been very professional and helpful. ..."

  • 5

    "Adam E. came out and assessed my system in no time. His wealth of knowledge on Electrical Engineering and Fluid Dynamics was evident. If you go with Sierra (and Adam E. as your tech); You will be nothing short of Safe and Happy"

  • 5

    "We are very happy with Sierra Air. Drew W. is very professional, friendly and knowledgeable. We look forward to our next service call."

  • 5

    "Service tech (Shawn B.) was awesome. Efficient, knowledgeable, personable/friendly. Explained everything he did, voiced possible concerns with our equipment but absolutely no high pressure sales pitch for anything. Refreshing!"

  • 5

    "We are new customers to Sierra Air. Jeremy was scheduled to arrive between 2 and 6. He showed up before noon and did a very thorough inspection of our two air conditioner units. We were so impressed, we purchased the service agreement. We look ..."

  • 5

    "Derik K. was extremely patient and customer friendly. He explained what needed to be done in layman term and gave me options on my repair on my current air conditioning unit. I appreciate that. Kudos to him."

  • 5

    "Matt as always did a complete and thorough job with my systems both in the house and casita. Told me about issues with my systems and what I can expect in the following months from them. Am well aware that I may have to replace but my decision is to ..."

  • 5

    "Matt performed our summer maintenance today and did a terrific job. He gave us very detailed reports of our system and its components along with his evaluation of several things that needed preventive maintenance. Matt laid out the facts, cost and ..."

  • 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

    "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

    "Dabari was very knowledgeable and a pleasure to talk to. He was very accommodating to my crazy schedule and made me feel like a VIP! I'm impressed with Sierra Air because of the amazing people they have working for them. Thank you Dabari!"

  • 5

    "Greg was at my house within the hour of me calling for a tech to come out and troubleshoot my a/c unit. He was polite, professional and diagnosed the issues in less than 30 mins. Highly recommend Sierra LLC Air Conditioning to anyone having problems ..."

  • 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

    "Jade was excellent at setting up a convenient appointment for service!"

  • 5

    "Very courteous and effective service by Matt B. Answered all questions and went above and beyond by changing filters. We have been long term customers and will continue as such."

  • 5

    "Great customer service and Drew took me thru each issue and explained everything in detail"

  • 5

    "Keith and Al showed up on time (a little early actually, after the office courteously alerted us by phone and asked permission for them to arrive early). They were efficient, respectful and knowledgeable and provided good, updated maintenance ..."

  • 5

    "Jon knew exactly what the issue was. Fixed it on the spot. Sierra sent someone out SAME DAY and within 2.5 hours from my initial call to them. Vegas and summer time is a dangerous mix and Sierra makes sure to keep everyone safe... THANK YOU"

  • 5

    "My husband and I have one word to describe our experience: AMAZING! Prior to Sierra we had worked with 5 other HVAC companies to find a remedy for our AC issues. Once we knew that our AC needed to be completely replaced, we started interviewing ..."

  • 5

    "We are very happy with the installation of our new air condition and heating units. Give Ryan and his team five stars."

  • 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

    "Very professional and polite. Explained what needed to be done and why. Service completed in timely manner. This is the second time Tyrone has been to our home and he is wonderful. Scheduling staff also very accommodating."

  • 5

    "Sierra Ac and Heating Co. are great. Timely service, service person, Jeremy, was great and professional. Has always been on time and I would highly recommend them. It's so nice to have good and honest service. Thanks Sierra!"

  • 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

    "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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