Furnace not heating? Get help fast
Get fast, reliable emergency heating diagnostics and repairs across Marietta and Cobb County. Our local technicians arrive equipped to restore your heat quickly.
Heating troubleshooting guide
Step-by-step checks you can perform safely at home in Marietta before scheduling a heating technician.
Display is blank, system runs continuously, or heat fails to switch on.
Check the screen for low battery warnings, verify the mode is set to 'Heat', and raise the target temperature at least 5 degrees above room temperature.
Rewiring, baseplate recalibration, or replacing faulty digital controls and smart thermostats.
Weak airflow from vents, furnace shuts off prematurely (short-cycling), or burning smell.
Inspect the return vent filter. If coated in gray dust, replace it with a clean 1-inch or 4-inch pleated filter immediately.
Clearing dust accumulation on limit switches and blower assembly caused by prolonged filter neglect.
Burner does not light, furnace clicks repeatedly, or strange metallic gas valve noises.
Ensure the manual gas supply valve handle on the pipe feeding the furnace is parallel to the pipe (fully open).
Gas line pressure testing, valve regulator adjustments, and manifold burner safety inspections.
Furnace starts the inducer motor but blows cold air, or flashes error codes on the board.
Turn off the furnace switch for 60 seconds and restore power to reset the control board lockout cycle once.
Cleaning oxidized flame sensors, replacing cracked silicon nitride hot surface igniters, and control module repairs.
Furnace gets very hot to the touch but no air blows through vents; squealing or grinding noises.
Check your home electrical panel to see if the dedicated furnace or air handler breaker tripped.
Replacing blown motor run capacitors, realigning blower wheels, or installing a replacement ECM/PSC motor.
Answers to common furnace and heating problems
Find quick troubleshooting steps, know what diagnostic visits cost, and see when to call for immediate emergency help.
Start with three basic checks: confirm your thermostat is set to 'Heat' with the temperature set at least 3 degrees above room temp, replace a dirty or clogged air filter that could be triggering a high-limit safety shutoff, and check your electrical panel for a tripped furnace breaker. Also ensure the service switch near the furnace unit is switched 'ON'.
Upfront flat-rate pricing
No hidden trip fees or surprise hourly spikes. We diagnose the root cause, give you a fixed quote, and let you decide.
No heat in freezing weather?
Emergency teams are rolling in Marietta and Cobb County 24/7. Call now for live dispatch.
Need a technician to check your heating system today?
Schedule a diagnostic visit or speak directly with our Cobb County furnace specialists.
Get fast furnace repair in Marietta.
When your furnace stops blowing warm air, you need quick diagnostics from dependable local technicians across Cobb County.
Live dispatch available for urgent heating and furnace outages in Marietta, East Cobb, Smyrna, and Kennesaw.
Fast local response
Emergency heating dispatch across Cobb County.
Upfront pricing
Clear repair quotes before any heating work begins.
Certified HVAC techs
Trained on all major furnace and heat pump brands.