Categories
- AC Filters
- AC Repair
- Air Conditioner Maintenance
- Air Conditioner Repair
- Air Conditioners
- Air Conditioning Services
- Air Quality
- Cleaning Tips
- Cooling
- Duct System
- Ducted Air Conditioner
- Ductless Air Conditioner
- Emergency Repairs
- Energy Costs
- Expert Help
- Fans
- FAQ
- Filters
- Fireplaces
- Fun
- Furnace Installations
- Furnace Repairs
- Furnaces
- Gas Fireplaces
- Gas Line
- Gas Line Installations
- Heat Pumps
- Heating
- Heating and Cooling
- Heating Contractors
- heating system
- Heating Technicians
- Humidity
- HVAC
- HVAC Contractors
- HVAC experts
- HVAC Noises
- HVAC professionals
- HVAC Repairs
- HVAC Service
- Insulation
- Maintenance
- Natural Gas
- Pestibulum molestieenean
- Saving Money
- Water
- Water Heaters
- Work
[BACK]
HVAC Thermostat Not Working After Trying to Replace
Posted On: August 15, 2023
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.
[BACK]
See What Our Customers Are Saying:
Jul 3, 2022
Great service and great people to deal with, from sales to installer. I highly recommend this company.
Apr 28, 2022
Twintech replaced our aging furnace and air conditioner recently. I highly recommend this company. Their quote was competitive, they were on time and respectful of our home and extremely professional. From the salesman to the installers and the owner who followed up afterward to ensure we were satisfied, we are very pleased with the service. We are looking forward to working with this company for all of our HVAC needs for the years to come. Excellent workmanship and service!
Apr 28, 2022
We wanted to get our AC replaced as it was 22-years old and added to this our furnace was costing more and more to repair. So, we decided to get both the furnace and AC replaced.
After going through a few quotes and product reviews we decided to go with Twintech. The three-men crew arrived early in the morning, wasted no time and got to work right away. By 2:00 pm, they were all done. Ive found their work to be top notch and they were completely professional. I had all my questions answered to my satisfaction both during the progress of their work and at end.
I have pleasure in recommending Twintech to anyone who is looking to get their furnace or Ac replaced
Nathan S.
Apr 28, 2022
Our air conditioner died On a Saturday and within hours Dave came out to take a look and discuss replacement/repair options.
The new air conditioner was installed on the Wednesday. The new unit was installed quickly. The installers were friendly and cleaned up afterwards.
We noticed a slight leak around the furnace that night and they came out the next day and fixed the issue. It has been working great and is quieter than our previous unit.
Very satisfied and would highly recommend TwinTech.
Apr 28, 2022
I contacted TwinTech to replace my 20-year old A/C. Dave, their service rep, promptly replied and was at my home within 2 hours. He was friendly and knowledgeable and didn't try to upgrade or oversell their A/C units but suggested the best fit for my small 1000 feet bungalow. Although this was during a heatwave and very busy, they were able to fit me in 2 days later. The TwinTech crew installed a 1.5 ton Ducane A/C unit that is now running smoothly while maintaining a constant cooling temperature. The crew were very courteous, professional and efficient and I will definitely recommend TwinTech to family and friends. I much appreciated your great service.
Nancy M., Oshawa
Apr 28, 2022
We had a great experience. The guys who installed our a/c did a nice job. Cleaned up.
Apr 28, 2022
excellent crew, fast and efficient! Would call them again when I need a new furnace.
Apr 28, 2022
Professional, courteous and efficient, dont need to say more than that! Use them you will not regret it.
Apr 28, 2022
TwinTech was a pleasure to deal with from the estimate through installation. We replaced a 28 year old a/c unit with one recommended by TwinTech's sales representative Dave who took the time to go over the product with us and answer any questions. The warranty is for 10 years parts and labour and they will complete the registration for you. Installation was by Greg (owner) and Mitch and Spencer who were quick and efficient and left everything clean and tidy.
Apr 28, 2022
Very professional, from the sales consultation and inspection to the final installation. Met every expectations we had for the job. A local business with great client support. We highly recommend. Twintech is a blue chip! Thanks!
Related Links:
pickering hvac prices, oshawa hvac furnaces, ajax hvac repair, hvac repairs, pickering hvac furnace, hvac prices, home hvac, heat pump hvac system, hvac furnace, hvac contractors, hvac repair service, commercial-hvac-service,