Furnace Not Heating Properly? Expert Solutions for San Jose Homeowners in 2025

Nothing is more frustrating than a furnace that won't heat properly, especially on a chilly night. Whether your furnace is blowing cold air, struggling to maintain temperature, or failing to turn on, Old Bridge Heating and Cooling in San Jose has the solutions you need to restore warmth to your home.

Common Reasons Your Furnace Isn’t Heating Properly

1. Dirty or Clogged Air Filters

Blocked filters restrict airflow, making it harder for your furnace to distribute warm air. Regular filter changes can solve this issue quickly.

2. Thermostat Issues

A faulty thermostat may be misreading temperatures or failing to send signals to your furnace. We test and calibrate your thermostat for accurate operation.

3. Pilot Light or Ignition Problems

If your furnace’s pilot light won’t stay lit or the ignition system fails, your furnace won’t produce heat. We diagnose and repair ignition issues efficiently.

4. Blocked Vents or Ducts

Obstructed airflow due to blocked vents or dirty ducts can reduce heating efficiency. We inspect and clean your ductwork to optimize airflow.

5. Blower Motor Malfunction

A faulty blower motor prevents heated air from circulating properly. Our technicians assess motor performance and provide necessary repairs.

6. Lack of Routine Maintenance

Skipping annual furnace maintenance can lead to unexpected breakdowns. Regular servicing from Old Bridge Heating and Cooling helps keep your system running smoothly.

How We Fix Your Furnace Problems Our expert team will: