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Call Us Today!

(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

    "Tyrone K. was on time, very knowledgeable and friendly. He explained the maintenance process and the system check up. He wore booties and used a drop cloth going to the attic. He took the extra steps with professionalism even at 109 degrees outside. ..."

  • 5

    "Thanks for the customer oriented service. Having Drew here in less than two hours and resolving my a-c problem was certainly extraordinary customer service."

  • 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

    "The nice thing about Sierra LLC is that once a window of time is selected, a team member calls to update the time of the arrival, telling you whether it is likely to be near the beginning or the end of the time frame. There's another call when the ..."

  • 5

    "Dabari was extremely professional, efficient and courteous. It is a pleasure doing business with someone who understands customer service!"

  • 5

    "Everyone from the customer service line to the technician is always so helpful and polite. They always call to follow up with a reminder the day before your appointment with a 4 hour window period and the day of, will call when the technician in on ..."

  • 5

    "Sierra's technicians arrive on time, are careful, explain their work and don't try to sell me things I don't need. All things I definitely appreciate!"

  • 5

    "I just want to comment on how wonderful Luis was to me and my AC problem. He handled it with such professionalism and courtesy. I would recommend Luis and Sierra to anyone who is looking for a job well done!! Thank you Luis."

  • 5

    "Probably one of the best companies I've had the pleasure with dealing. For me, the customer service from their employees is what won me over. Jon J was nothing but a true professional. He took the time to explain the process along with other helpful ..."

  • 5

    "Sierra Air is very professional. They were on time. Fernando and his partner were polite, courteous and very thorough. Had a big job, 7 hours in attic on a hot day. Did a great job. I would highly recommend this company."

  • 5

    "Sierra is extremely professional and timely. I really appreciate the follow-up calls to let me know exactly when the technician is on the way out so I do not have to wait around for hours. The technicians are super helpful and friendly, even ..."

  • 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

    "Always does work as promised. Only positives for this company."

  • 5

    "The members of Sierra LLC air conditioning & heating are exceptionally professional and sincerely interested in helping their clients enjoy the benefits of home comfort throughout the year which can be a challenge given the warm temperatures. Their ..."

  • 5

    "If you live in Las Vegas, you need to have an "AC guy". We now have an AC guy and it's Wayne from Sierra. We recently moved and wanted to get the AC checked before the real heat moves in. Wayne checked both AC units, gave us the full run down on what ..."

  • 5

    "Larry is the guy everyone should see before any other a/c person, he cut through the chase and fixed what four other companies just "put a band aid on". Our system was never better. Thank you for everything Larry!!"

  • 5

    "Sierra employees are always professional and pleasant. Appointments are on time. Would recommend."

  • 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

    "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

    "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

    "Knowledgeable technician. He did not rush through the job and took his time. I recommend Sierra AC highly. I renewed the contract without hesitations."

  • 5

    "We had superior service today from Matt B., Ryan H. and Robin H. Matt did our recent seasonal checkup a couple of days ago and was very thorough and professional. We discussed our overall HVAC performance and he put us in touch with Ryan from the ..."

  • 5

    "Where do I start?? What a GREAT experience with you!!! From the first phone call, to Chris AND to the team that replaced our old unit with the new.. I am so overwhelmed by the prompt service and professionalism of your employees. This was the first ..."

  • 5

    "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 ..."

  • 5

    "I have had Greg P. out initially to repair our AC unit and since to conduct a maintenance check. He is diligent, hard working and does a complete job. I would recommend Greg to anyone. He has found a number of issues with our units which were real ..."

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