
Furnace Repair in Denver, CO
Furnaces are the most common residential heating system in Denver. Furnace repair focuses on the specific components that keep a unit igniting, burning, and circulating heat safely and reliably.
Request Furnace RepairCommon problems this service addresses
- Pilot or ignition failure
- A flame sensor that won't keep the burner lit
- A blower motor that won't start or runs continuously
- A cracked or aging heat exchanger
- Pressure switch or inducer faults
What this service may involve
- Cleaning or replacing the flame sensor
- Inspecting the burners and ignition system
- Testing the inducer and pressure switches
- Checking the blower motor and capacitor
- Evaluating the heat exchanger for cracks
Signs you may need this service
- The furnace clicks but doesn't ignite
- The burner lights and then shuts right back off
- The blower runs without producing heat
- A carbon monoxide detector near the furnace alerts
Maintenance and prevention
- Test carbon monoxide detectors each season
- Replace filters to protect the heat exchanger
- Schedule annual heating maintenance
- Keep the area around the furnace clear
Furnace Repair FAQs
What does it mean if my furnace lights then shuts off quickly?+
This often points to a dirty flame sensor, a faulty pressure switch, or an airflow problem. The system is shutting down as a safety measure and should be inspected.
How do I know if my heat exchanger is cracked?+
Cracks can allow combustion gases into the airstream and may produce unusual smells, soot marks, or carbon monoxide warnings. A technician can inspect the heat exchanger during service.
Should I repair or replace an older furnace?+
If the furnace is near the end of its expected life and the repair is major, replacement may be more cost-effective. For newer furnaces with a single failed part, repair is often reasonable.
Related HVAC services

Heating Repair
Diagnosis and repair of residential heating systems that aren't keeping the home warm.
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Furnace Installation
Replacement and new installation of residential furnaces sized for Denver winters.
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Heating Maintenance
Pre-season tune-ups that help furnaces and heat pumps run safely through Denver winters.
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HVAC Diagnostics & Troubleshooting
Systematic diagnosis of heating and cooling problems to identify the true cause.
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