Heating repair
Heating and Furnace Repair in Suwanee, GA
Where does the startup sequence break down? We trace it one step at a time and restore steady heat.
Where Does the Furnace Stop?
Every gas furnace follows the same startup script. A call for heat arrives from the thermostat. First the inducer spins up to vent the flue, and a pressure switch confirms there is draft. Next the igniter glows, the gas valve opens and the burners catch. The flame sensor proves the flame. After a short delay the blower starts and warm air reaches the rooms. When heating fails, it fails at one of those steps, and the fastest way to fix it is to find which one. Our technicians watch the sequence, read the control board's fault code and then work down the chain, from the inducer and its draft switch to the igniter, the valve, the sensor, the limits and finally the blower. Electric furnaces get their heating elements, sequencers and relays checked the same way. Before calling, it is worth confirming the thermostat is calling for heat with a setpoint above the room, the switch beside the furnace is on, the breaker has not tripped and the filter is not clogged. A dirty filter can overheat the furnace and trip the limit switch on its own. And if you ever smell gas, do not operate switches or the thermostat. Get out of the building, then phone the gas company or 911 once you are outdoors.
Which Furnace Components Do We Test?
No-heat problems usually trace back to one of these parts. Testing them in order avoids replacing parts that were fine.
Hot surface and spark igniters
Checked for resistance and cracks. A failed igniter means no flame at all.
Flame sensor
Cleaned or replaced when residue keeps it from proving the flame, which shuts the burners off within seconds.
Inducer motor and pressure switch
Tested to confirm the furnace can establish draft before it tries to light.
High-limit and rollout switches
Safety switches checked, along with the airflow or venting problem that tripped them.
Blower motor and capacitor
Measured for amp draw and speed so heated air actually reaches the rooms.
Filters and return air
Restrictions found and cleared, since poor airflow causes many heating shutdowns.
Electric heat elements
On electric furnaces and air handlers, we check each element plus the sequencers and relays that switch them, replacing whatever has failed.
Control board and wiring
Fault codes read and wiring traced to the component actually responsible.
How Does a Heating Repair Visit Work?
Safety questions first
Any gas smell or burning odor? If so, safety instructions come before anything else. Then we note the symptoms and the age of the furnace.
Watch, test and explain
The technician observes a heating cycle, reads fault codes and tests components in sequence. The cause and its price are explained before work begins.
Repair and confirm
Once you approve, the new part goes in and the furnace runs repeated cycles so we can confirm temperature rise and safeties.
Why Call Us When the House Goes Cold?
Methodical testing
The startup sequence is checked step by step so the real fault gets fixed.
Price before parts
The repair and its cost are explained, and nothing proceeds without your approval.
Careful in your home
Shoe covers, drop cloths and a clean utility closet or attic when we finish.
- Gas and electric furnaces
- Startup sequence tested
- Price before parts
- Emergency help at night
Furnace Clicking but Not Heating?
Rule out the thermostat setting, a tripped breaker and a dirty filter. Heat still missing? Tell us what you are hearing and we will track down the fault.