Urgent Issue
Furnace Not Heating - Diagnosis and Repair
When furnace not working occurs in Bay Area homes, local factors can play a role. Understanding your specific situation helps us provide the most effective solution.
Common Symptoms
Signs that indicate this problem
Possible Causes
What might be causing this issue
Thermostat settings
Verify thermostat is set to 'heat' mode and temperature is set above room temperature.
Dirty filter
A clogged filter restricts airflow and can cause the furnace to shut down.
Pilot light out
For older furnaces, check if the pilot light is lit. Follow manufacturer instructions to relight.
Ignitor failure
Modern furnaces use electronic ignitors that can fail.
Gas supply issue
Verify the gas valve is open. If you smell gas, leave immediately and call the gas company.
Flame sensor dirty
A dirty flame sensor prevents the burners from staying lit.
Safety Information
- -If you smell gas, leave immediately and call 911 or your gas company
- -Never attempt repairs if you smell gas
- -Install carbon monoxide detectors near bedrooms
Services That Can Help
Professional solutions for this problem
Related Pages
Frequently Asked Questions
Common questions about this issue
Furnace Not Working urgency varies. Complete system failure in bad weather? That's urgent. Intermittent issues? Schedule when it works for you.
The most common causes are Thermostat settings, Dirty filter, Pilot light out. A proper diagnosis will identify exactly what's happening with your system.
Basic furnace not working troubleshooting: check the filter, verify thermostat settings, look at your breaker panel. If those don't help, call a pro.
Related HVAC Issues
Other problems you might encounter
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