Residential Thermostat Repair
Roxly diagnoses and repairs thermostat problems for homes throughout the Charlotte metro area, with findings and an estimate reviewed with you before any work begins.
Offer terms
One per household or business; valid toward a completed, qualifying repair, not the service call fee unless confirmed at booking. Offers cannot be combined.
- 30-day labor / 90-day parts warranty
- Findings and an estimate before any repair begins
- Emergency visits available on request
What HVAC customers say
Roman did a great job servicing the AC units at both of our properties. He was professional, honest, and very thorough. He checked everything, explained what he found, completed the maintenance, and gave us useful recommendations. Fair pricing, great service, and easy to work with. We’ll definitely use him again and highly recommend him.AC maintenance
5 stars! Highly recommend! My AC wasn’t working properly, and after several attempts to figure out what was wrong, they came in and got it fixed! I’m so grateful for their knowledge, professionalism, and persistence in resolving the issue. Excellent service and a great experience overall! I would definitely recommend them! Thank you Roman!AC repair
Great experience with this company! Our AC unit broke and they came out the next day. Very professional, friendly office and honest pricing. They got our AC running again quickly and it’s been working perfectly since. Really reliable HVAC company, highly recommend.AC repair
Request Thermostat Repair
Common thermostat problems
- The thermostat screen is blank or unresponsive
- The set temperature doesn't match what the house actually feels like
- The system won't respond to thermostat changes
- A smart thermostat losing Wi-Fi or app connection repeatedly
- The thermostat calls for heat or cool but the system never starts
- Batteries draining unusually fast
- Scheduling or programming not saving
- The display shows an error code
What's usually behind it
Thermostat faults range from dead batteries and loose low-voltage wiring to a miscalibrated sensor or a wiring mismatch after a smart-thermostat swap.
Repair first
Thermostat issues are usually inexpensive to resolve and worth ruling out first — a control problem can look exactly like a bigger system fault. Availability varies by location, equipment, brand and technician schedule; listing a city does not guarantee same-day arrival. Call to confirm service for your address.
Safe checks before you call
- Put in fresh batteries if the thermostat uses them, even if the screen still shows some life.
- Check the breaker for the furnace/air handler, which also powers many thermostats.
- Confirm the thermostat is set to the correct mode (Heat/Cool/Auto) and fan setting.
Beyond these basics, leave refrigerant, gas, and internal electrical components to a technician.
Frequently asked questions
My thermostat screen is blank — what should I check first?
Try fresh batteries if it uses them, and check the breaker for the furnace or air handler, which often shares power with the thermostat.
Can a bad thermostat cause the whole system to stop working?
Yes. A miswired or failed thermostat can prevent the furnace or AC from ever getting the signal to start, which looks like a much bigger problem than it is.
Can you fix thermostat wiring problems?
Roxly can diagnose and correct thermostat wiring and compatibility issues on an existing system. Ask when you call to confirm scope for your setup.
Why does my smart thermostat keep losing connection?
This is usually a home Wi-Fi or router issue rather than the thermostat itself, though a weak signal location can also be a factor.