Reliable HVAC Thermostat Repair, Replacement, and Upgrades
Your thermostat is the command center of your HVAC system. When it malfunctions, your heating and cooling can become unreliable, leading to discomfort, wasted energy, and higher utility bills. At John Davis Heating and Air, we specialize in HVAC thermostat repair in Fayetteville and Peachtree City, GA, and surrounding areas, along with expert replacements and upgrades to keep your system running efficiently.
Call John Davis Heating and Air today at (770) 460-9232 for fast thermostat service and dependable comfort control.
Experts in Comfort and Efficiency
A faulty thermostat can make your entire HVAC system seem broken, even when the equipment is working fine. Our skilled technicians know how to quickly diagnose thermostat issues, provide effective repairs, and recommend upgrades when necessary. With our experience and attention to detail, we help you enjoy more consistent temperatures and lower energy costs.
Complete Thermostat Solutions
Whether your thermostat is outdated, inaccurate, or completely unresponsive, we offer a full range of services to restore reliable comfort. Our thermostat services include:
- Thermostat repair and recalibration
- Replacement of broken or outdated thermostats
- Installation of programmable thermostats
- Smart thermostat upgrades with Wi-Fi control
- Electrical and wiring inspections for safe operation
- Multi-zone thermostat installations for greater control
- System performance testing after service
By repairing or upgrading your thermostat, we help you achieve better temperature accuracy, reduce energy waste, and improve overall system efficiency. Smart thermostat upgrades can even give you control from your smartphone, making it easier than ever to manage comfort while saving money.
Call Today for Thermostat Service You Can Trust
If your HVAC system won’t turn on, cycles too often, or struggles to maintain the right temperature, your thermostat may be the cause. Trust John Davis Heating and Air for professional HVAC thermostat repair in Fayetteville and Peachtree City, GA, and surrounding areas—along with expert replacements and upgrades. Our technicians provide fast response times, honest recommendations, and high-quality service that keeps your home or business comfortable year-round. With our expertise, you’ll enjoy more reliable heating and air conditioning and greater control over your energy use.
Call us today at (770) 460-9232 to schedule your thermostat repair, replacement, or upgrade with the trusted experts at John Davis Heating and Air!
Most Recent Pins (63)
JOHN DAVIS HEATING AND AIR
A technician replaced the igniter on a Carrier furnace and installed a new Honeywell thermostat in Newnan, GA. This service improved the furnace's ignition system and upgraded the home's temperature control.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the heat exchanger and capacitor on a Ruud furnace in Fayetteville, GA, improving system reliability and efficiency. The technician also installed a Honeywell thermostat, enhancing precise temperature control and energy savings.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a faulty relay on a Trane furnace and installed a new Honeywell thermostat in Fayetteville, GA, improving heating system control and restoring proper furnace operation during winter months for the homeowner.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a 3 Ton 14.3 SEER Amana heat pump and matching air handler in Fayetteville, GA. Post-installation tests confirmed optimal system performance and efficiency for homeowners.
JOHN DAVIS HEATING AND AIR
A technician in Fayetteville, Georgia replaced a failing inducer motor on a Rheem furnace and installed a new thermostat. This work improved airflow, ignition, and temperature control. The furnace was tested after the repair and now functions safely and reliably.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the inducer motor on a Lennox furnace and installed a Honeywell thermostat in Fayetteville, GA. The technician cleaned the system, replaced filters, and restored efficient, reliable heating performance just before winter.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the inducer motor on an Amana furnace and installed a Honeywell thermostat in Fayetteville, GA. After testing, the system efficiently restored reliable heating for winter comfort.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the capacitor and completed a 14-point maintenance check on an Amana furnace in Fayetteville, GA, ensuring optimal winter performance. The technician also installed a Honeywell thermostat to enhance energy efficiency and homeowner comfort.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the heat exchanger and capacitor on an Amana furnace in Newnan, GA. This service restored the furnace to stable, high-level performance. The work ensured consistent heating function for the property.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a capacitor on an Amana furnace and installed a new Honeywell thermostat in McDonough, GA. This service enhanced furnace efficiency and provided precise temperature control for improved home comfort.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a faulty pressure switch on a Goodman furnace and installed a new Honeywell thermostat in Fayetteville, GA, restoring reliable heating and optimal energy efficiency for the winter season.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a heat exchanger and installed a Honeywell thermostat on a Carrier furnace in Fayetteville, GA, restoring efficient heat delivery and improved temperature control for the homeowner during winter.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the control board and capacitor on a Ruud furnace in Fayetteville, GA, restoring efficient heating performance. The technician also installed a Honeywell thermostat, enhancing temperature control and energy savings for the homeowner.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the control board and installed a Honeywell thermostat on an Amana furnace in Peachtree City, GA. The furnace now operates correctly and maintains indoor temperature as expected.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a pressure switch and capacitor on a Rheem furnace in Fayetteville, GA, restoring full heating performance and ensuring reliable winter comfort for the homeowner.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a faulty pressure switch and installed a new Honeywell thermostat on a Carrier air conditioner and furnace system in Fayetteville, GA. The service improved system control and restored safe operation of the HVAC equipment.
JOHN DAVIS HEATING AND AIR
A technician in Fayetteville, GA replaced the gas valve and capacitor on a Ruud furnace and installed a new Honeywell thermostat. These repairs restored the heating system to normal operation, ensuring effective performance and temperature control.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the ECM motor and hard start kit on a Trane furnace in Fayetteville, GA. After repairs, technicians tested system performance and cleaned components, ensuring reliable, consistent heat throughout the home's winter season.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the pressure switch and capacitor on an Amana furnace and installed a Honeywell thermostat in Peachtree City, GA.
JOHN DAVIS HEATING AND AIR
On December 19, 2025, a technician from John Davis Heating and Air repaired an Amana furnace in Peachtree City, GA, replacing the inducer motor, capacitor, and installing a Honeywell thermostat to restore efficient home heating.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the blower motor, pressure switch, and installed a new Honeywell thermostat on a Ruud furnace in Fayetteville, GA. After repairs, technicians tested the system, confirming optimal operation and improved energy efficiency.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air repaired damaged ductwork and installed a new Honeywell thermostat on a Ruud air conditioner and furnace in Fayetteville, GA, restoring proper airflow and enhancing system efficiency for improved home comfort.
JOHN DAVIS HEATING AND AIR
Technicians replaced a faulty pressure switch and installed a new Honeywell thermostat on a Carrier air conditioner and furnace in Peachtree City, GA. Post-repair system tests confirmed restored heating, providing reliable winter comfort and energy-efficient operation for the homeowner.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a Rudd 4-ton heat pump package unit in Brooks, GA. The team also set up a new Honeywell thermostat to complete the heating and cooling upgrade.
JOHN DAVIS HEATING AND AIR
A technician replaced the heat exchanger and installed a new thermostat on an Amana furnace in Fayetteville, GA. After the work was completed, the system began heating the home correctly, restoring indoor comfort for the resident.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a new Amana air handler and Honeywell thermostat in Peachtree City, GA, ensuring consistent indoor temperature control. The technician verified system efficiency, improving home comfort during seasonal changes.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a 14.3 SEER Amana heat pump and a 2-ton air handler in Peachtree City, GA. The technician also added a 6-inch vent pipe in the kitchen and installed a new Honeywell thermostat for improved temperature control.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a blower motor on a Carrier air conditioning system and installed a new Honeywell thermostat in Peachtree City, GA. This service improved system performance and provided better temperature control for the customer.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a new Amana furnace and Honeywell thermostat in Fayetteville, GA, ensuring dependable heating efficiency and enhanced comfort for the home throughout the cold winter months.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a new pressure switch and thermostat in a home in Jonesboro, GA. The service restored proper system function and ensured steady indoor comfort for the customer.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the inducer motor and capacitor on a Ruud furnace in Fayetteville, GA, restoring heat and improving system efficiency for winter comfort in December 2025.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a capacitor and pressure switch on a Trane furnace in Fayetteville, GA. The technician also installed a T6 Honeywell thermostat. These repairs restored the heating system to normal operation, improving indoor comfort for the homeowner.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced the control board, pressure switch, and thermostat on an Amana air conditioning system in Fayetteville, GA. The team completed the repairs, and the system now works correctly, maintaining proper indoor temperature.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a new compressor and Honeywell thermostat on an Amana air conditioning system in Peachtree City, GA. This service restored full function to the cooling system, ensuring the home maintains consistent indoor temperatures.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a hard start kit on a Goodman furnace and installed a new Honeywell thermostat in Peachtree City, GA. The service restored full heating function, ensuring the system operates correctly during cold weather.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air repaired a Carrier furnace in Peachtree City, GA. The technician replaced a broken inducer motor and installed a new Honeywell thermostat to restore proper heating.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a faulty relay on a Lennox furnace and installed a new thermostat during a December service call in Peachtree City, GA. The repair restored heating performance and ensured efficient temperature control for the homeowner.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air inspected an Amana furnace in Peachtree City, GA that was not heating properly. Technicians identified a faulty control board as the cause. They ordered a replacement part under warranty and installed it the next day to restore heating performance.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air repaired a Lennox furnace in Peachtree City, GA by replacing the heating capacitor and restoring proper function. The technician also installed a new Honeywell thermostat to improve system control.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air repaired a Ruud furnace in Peachtree City, GA. The system was not producing heat due to a damaged inducer motor. The technician diagnosed the issue and installed a replacement part the next day to restore proper operation.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air repaired a broken gas valve on an Amana furnace in Peachtree City, GA. The unit was not heating. The team completed diagnostics, replaced the faulty part, and installed a new Honeywell thermostat as requested by the customer.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a faulty igniter on an Amana furnace and installed a new Honeywell thermostat during a service call in Peachtree City, GA. The technician completed a full inspection and ensured the system operated correctly after repairs and installation.
JOHN DAVIS HEATING AND AIR
A technician replaced a broken thermostat on a Heil furnace for a homeowner in Fayetteville, Georgia. The repair restored proper heating system function and resolved the customer's issue with home temperature control.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a new Amana S air conditioning system in Fayetteville, GA. The system uses variable speed technology and a side discharge design, which reduces its size compared to standard HVAC units.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a new Amana furnace, updated the return and supply plenums, and set up a Honeywell thermostat for a home in Fayetteville, GA.
JOHN DAVIS HEATING AND AIR
A technician in Fayetteville, Georgia, repaired a connection issue between a Nest thermostat and an Amana HVAC unit. The service involved identifying and securing a loose wire that was not properly contacting the terminal, restoring full thermostat function.
JOHN DAVIS HEATING AND AIR
A technician in Riverdale, Georgia, reprogrammed a Honeywell thermostat to work with a Trane heat pump. The thermostat had been set for a standard split system, which caused issues after the new homeowner took occupancy.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air serviced an Amana air conditioning system in Tyrone, GA. The technician inspected zone controls and thermostats, verified proper operation, and restored reliable cooling ahead of peak summer heat.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed an Amana S thermostat for a residential customer in Senoia, Georgia. The service involved setting up the new thermostat to improve temperature control and system efficiency.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a Honeywell zone panel with 1 heating and 1 cooling function for a residential customer in Sharpsburg, GA. This system helps control temperatures in different areas of the home more efficiently.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a 3.5-ton Amana 17 SEER air conditioner, an evaporation coil, and a Wi-Fi thermostat in Fairburn, Georgia. The system improves cooling performance and offers remote temperature control through the thermostat.
JOHN DAVIS HEATING AND AIR
In Fayetteville, GA, our technician reset and reprogrammed a thermostat that lost communication with an Amana HVAC system, restoring accurate temperature control and improving system responsiveness for homeowners.
JOHN DAVIS HEATING AND AIR
A technician in Senoia, Georgia, reprogrammed a non-responsive EcoBee thermostat and cleaned the P-trap to improve system performance. This service resolved thermostat connectivity issues and restored proper HVAC function.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air repaired a Carrier air conditioning system in Fayetteville, Georgia. The technician replaced the condenser fan motor and capacitor, and fixed damaged thermostat wiring to restore proper system function.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a complete Amana air conditioning system in Fayetteville, GA. The setup included a 14.3 SEER 3.5-ton AC unit, matching 3.5-ton coil, 80% efficiency 80,000 BTU furnace, and a Honeywell thermostat for temperature control.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air completed a service call in Fayetteville, Georgia. The technician installed a new Honeywell T6 thermostat with a 5-year parts warranty on an Amana air conditioning system.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air replaced a faulty thermostat on an Amana air conditioning system in Fayetteville, Georgia. The technician installed a new Honeywell T6 thermostat after finding the main level thermostat unresponsive. The new unit includes a 5-year parts warranty.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a new 4-ton Amana air conditioner and 80,000 BTU furnace in Sharpsburg, Georgia. The installation included a 14.3 SEER unit, a new zone board, and Honeywell thermostats. The system comes with a 10-year parts warranty and a 1-year labor warranty.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air installed a two-ton Amana S 16 SEER inverter AC and coil in Fayetteville, Georgia. The team also added a Wi-Fi thermostat, electrical disconnect, and surge protector. The installation includes a 10-year parts warranty, 5-year labor coverage, and a lifetime replacement warranty on the AC unit.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air provided an estimate in Newnan, GA for installing a new Amana 3-ton variable speed AC unit, coil, and a two-stage 80% efficiency furnace. The quote included a Wi-Fi thermostat, filter, return box, safety switches, electrical disconnect, and surge protector.
JOHN DAVIS HEATING AND AIR
A technician in Jonesboro, GA inspected an HVAC system after a thermostat displayed an error code. The team reset the system, verified the cooling response, and confirmed proper unit operation. Final readings showed refrigerant pressure at 128325 PSI with a 21°F temperature split.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air completed a thermostat service call in Fayetteville, GA. Technicians checked the filter, measured capacitor readings, verified compressor efficiency, cleared the drain line, and confirmed proper system pressures and airflow temperature split. The condenser was clean, and all diagnostic checks supported system functionality.
JOHN DAVIS HEATING AND AIR
John Davis Heating and Air diagnosed a thermostat communication error and a power issue with the outdoor unit in Jonesboro, Georgia. The team identified a faulty surge protector and reset the breaker to restore function. Although the error cleared, the outdoor display remained off, indicating further inspection may be needed.
Most Recent Reviews (7)
Jan 27, 2026
Jane StephensJan 19, 2026
HUGE shout out to John Davis Heating and Air!!
Thursday late afternoon heat stopped heating - these guys were here Friday at 8:00am to check out the problem!!
The whole system was shot! It was a 2005 unit, so not completely shocked.
They arrived this morning and we are already up and running!
Now, THAT is SERVICE!!
Ann RobinsonJan 07, 2026
Mike GuilbertJan 05, 2026
Dewayne and Santiago were excellent technicians, very thorough and were able to figure out and repair a difficult issue with the heater running erratically. Working with this company was a pleasure. Main office was also especially good to work with scheduling
thomas grafDec 31, 2025
I had a fantastic experience with John Davis Heating & Air. My HVAC stopped working, and they were able to come out the same day I called! It turned out to be a dead fan motor. The technician was fast, efficient, and very friendly throughout the process. I was also pleasantly surprised by the reasonable pricing for such a quick repair.
Highly recommend them for anyone needing reliable HVAC service. 5 Stars!
Yasin HoseinDec 24, 2025
Peeyush NaiduDec 04, 2025
Jamie LambertMaps data from OpenStreetMap © OpenStreetMap
