[BACK]
HVAC Thermostat Not Working After Trying to Replace
Today I tried to replace my existing thermostat with a Nest Learning Thermostat.
My old thermostat is a Bryant thermostat and Bryant HVAC unit.
The thermostat has Y G C W and Rh with a jumper to Rc.
Connected the Nest as suggested and got this error message.
Google tech support wasn't able to help and now after trying to reconnect my old thermostat to have AC running, that won't work now either.
The thermostat won't turn on at all (without batteries) but it turns on with batteries but won't turn on the compressor.
Any suggestions? I have two units (upstairs and downstairs) - it is the downstairs unit that is affected.
We have a crawl space and I can't tell anything obviously wrong (like drain pan etc).
Question from user me4help at hvacadvice at reddit.
Answer:
It sounds like you're experiencing some technical issues with the installation of your Nest Learning Thermostat and the functionality of your HVAC system. Here are a few troubleshooting steps you can take to try to resolve the issues:
Check Wiring Connections: Double-check the wiring connections on both the Nest thermostat and the HVAC unit. Make sure that each wire is properly connected to the corresponding terminal on both ends. Ensure that there are no loose connections or exposed wires.
Check Compatibility: While Nest thermostats are compatible with many HVAC systems, there can be exceptions. Verify that your Bryant HVAC system is compatible with the Nest Learning Thermostat. You can refer to the Nest website or consult the Nest compatibility guide to confirm compatibility.
Check Fuse and Circuit Breaker: If the old thermostat is not working with the HVAC system after attempting to reconnect it, there might be an issue with the power supply. Check the fuse and circuit breaker associated with your HVAC system to make sure they haven't tripped.
Check Battery Contacts: Since you mentioned that the old thermostat is turning on with batteries but won't control the compressor, it's possible that the battery contacts are not making proper contact. Make sure the battery contacts are clean and secure.
Check Compatibility with Dual Systems: If you have two HVAC units for upstairs and downstairs, ensure that the Nest thermostat is compatible with dual-zone systems. Some thermostats require additional wiring or configurations for multi-zone systems.
Nest Wiring Configuration: Verify that you have configured the Nest thermostat correctly based on your HVAC system's wiring. The Nest app or manual should provide guidance on how to set up the thermostat for your specific wiring configuration.
Consult HVAC Professional: If you've tried these troubleshooting steps and are still experiencing issues, it might be a good idea to consult a professional HVAC technician. They can diagnose the issue more accurately and help you resolve any compatibility or wiring problems.
Factory Reset Nest Thermostat: If you want to return to the original configuration, you can perform a factory reset on the Nest thermostat. Refer to the Nest's official documentation on how to perform a reset.
Remember that working with HVAC systems involves electrical components, and if you're not comfortable or experienced with these systems, it's best to seek professional help to prevent any further complications or safety hazards.
Answer from user Downtown-Fix6177 at hvacadvice at reddit.
I called Twintech during the Covid 19 crisis because our furnace was broken and it was still very cold during the nights. Dave answered all of my questions by phone but wanted to come have a look but only if our family felt comfortable having someone visit during the uncertainty surrounding the pandemic and was able to attend that very same affternoon.
He was very courteous and informative but most importantly he respected his and our safety by wearing medical gloves in our home and maintaining proper physical distancing. He reviewed the various options of the products that suited our needs going over not only price but quality of workmanship, warrantees and where the product was manufactured which were all important factors in making such a large purchase. You could tell that Dave had been in this industry for a very long time.
The installation was done by a fine young gentleman the very next day and we now have a toasty warm home to ride out this crisis in while humming along at 96% efficiency!
I would recommend this very professional, small family business for anyone in need of HVAC equipment or maintenance.
My special thanks to Twintech teams! They had replaced my furnace and A/C, and installed a new humidifier for me 2 weeks ago. Dave, the sales manager, not only provided me with an honest quote on the best HVAC products with best quality and warranties, he also arranged portable heaters for me and sent supporting docs to energy company for energy audit. Above and beyond service!
Greg, Grant, Mitch had worked tirelessly and professionally to perform the HVAC installation. They worked with professional tools, and performed proper measurement readings after installation. They are very patient with all my questions, and very pleasant to communicate.
Great work guys! This company sure knows their products and they stand behind their services. My home comfort level has improved! I am glad that I can support an ethical and honest local family business.
Professional, flexible on price and delivered on time...well done. All you can ask for when getting a new furnace.
The work was done quickly and professionally. Workers were really polite and easy to work with.
Product works great!
Furnace broke down on a Wednesday, shopped around for prices and Friday Twintechs name came up from a referral from my wife's work. Called Dave 11 am, he came over around 1 pm. Gave me a very good price, I accepted. The guys were there two hours later to take the old furnace out and install the new one. All finished by 6:30pm. Finally heat.
They were very pleasant and helpful. As a result we are doing our A/C later this year with this company.
After some extensive research, we settled on Twintech for our new furnace. The service - from Dave's initial visit - through to the installation was absolutely fantastic.
Dave was super-patient with our many questions, did not try to "up-sell" us into buying things we don't need, knowledgeable, friendly and all-around an excellent Advisor.
I've forgotten the names of the installers but they were superb as well. They showed up on-time, did all the work with no mess or intrusion, removed the old furnace and installed the new one in one day; all with no impacts to our day-to-day life.
I cannot recommend Twintech enough, especially over any of 'bigger guys' who tried to sell us a bunch of thing we don't need. Twintech were fantastic and my wife and I are very pleased with our purchase.
From the minute I met Dave and discussed my new furnace needs I knew I was in good hands. He was patient, knowledgeable and very professional through the quotation process.
Grant and Greg did an outstanding job on the install. They did a great job of explaining the defects with my old furnace. The quality of the installation was excellent and the attention to detail was on another level. The old adage You get what you pay for couldnt be more true as I feel I received great value, skilled expertise and high quality customer service. I highly recommend Twintech for all your heating and cooling needs.
Glad to have found a not-too-big local firm that provided the needed expertise, quality workmanship, and competitive pricing as well. In and out in one day, removed the old units, did a nice job installing all of the new units, and left no debris. Even have a service contract that far outshined the big company offerings. Would definitely recommend them.
Appreciated a quick response to my request. Dave and Greg were very professional and made the experience seamless.
Very professional through the entire process. Installation and removel was done on a sloppy winter day, they put down runners on the floors and stairs and when they left, there wasn;t any sign of someone being in our house. Furnace works great as promised.
Related Links:
oshawa gas furnace problems, ac service call, pickering hvac prices, local ac services, ajax furnace inspection, ac repair services, whitby furnace replacement, furnace repairs pickering, oshawa hvac furnaces, central ac service, ac unit maintenance, pickering gas furnace problems, ac installation near me, ajax hvac repair, hvac repairs, ac contractors, ac repair and service, whitby furnaces, residential furnace, residential ac repair, pickering hvac furnace, pickering furnace service, pickering furnaces, oshawa furnace inspection, oshawa furnaces, nearby ac repair,
Very pleased with the professional service that TwinTech Heating and Cooling provided in replacing my furnace. I got several quotes from different service providers. Their price was excellent and they explained the features very well. We are very glad we went with TwinTech and highly recommend their services.
We were new homeowners in need of a second opinion. TwinTech Heating & Cooling were Amazing and professional. Very knowledgeable and great service all around. Recommend to anyone looking for honest and reliable services. Treated with respect and care. Thank you Greg, Mitch and Bob!
TwinTech is an excellent and honest company! I called them for a second opinion after being told by another company that I needed to replace my furnace. Turns out this was not the case at all! I did not need a new furnace. TwinTech did not push to make an unnecessary sale and saved me from a huge expense. Bob and Mitch were extremely professional and above all honest! I definitely recommend TwinTech!
Amazing experience with TwinTech Heating & Cooling! Their team was professional, knowledgeable, and efficient from start to finish. They installed my new furnace quickly and left everything spotless. The technicians took the time to explain everything and made sure I was comfortable with the system before they left. Great customer service and fair pricing. I highly recommend them for anyone needing HVAC services!
Great experience all around. Bob was sharp and easy to talk to, and Greg handled the installation perfectly. Would hire them again in a heartbeat.
Inconsistent airflow from your furnace can lead to uneven heating in your home, making some rooms too warm while others remain cold. This issue can arise from various causes, ranging from simple maintenance needs to more complex mechanical problems.
Read MoreRegular furnace tune-ups are essential for maintaining the efficiency, safety, and longevity of your heating system. Whether you're preparing for the winter chill or ensuring year-round comfort, scheduling a professional tune-up can save you mone
Read MoreWhen purchasing a new furnace, the warranty is a critical factor to consider. It not only provides peace of mind but also protects your investment from unexpected repair costs. This guide will break down everything you need to know about furnace warr
Read MoreIncreasing the lifespan of a furnace unit requires regular maintenance, proper usage, and attention to potential issues. Here are some tips to help ensure your furnace remains efficient and lasts as long as possible: 1. Schedule Regular Maintenanc
Read More