Common Furnace Problems and Their Solutions

Stay Warm All Winter by Troubleshooting Furnace Issues

As temperatures drop, a properly functioning furnace is essential for keeping your home warm. If your heating system isn’t working as it should, you might be dealing with a common furnace problem. Here’s a guide to the most frequent   furnace   issues and how to fix them.


1. Furnace Won’t Turn On

Solution:  Check Your Thermostat and Power Supply

Ensure your thermostat is set to “heat” mode and the temperature is higher than the current room temperature. Also, inspect your circuit breaker to see if the furnace has tripped the power.


2. Weak or No Airflow

Solution: Replace Dirty Filters

Clogged air filters can restrict airflow, making it harder for your furnace to distribute warm air. Regularly replacing or cleaning filters can improve efficiency.


3. Strange Noises Coming from Furnace

Solution:  Identify and Address the Cause

Loud banging, rattling, or squealing noises can indicate issues like loose parts, a failing blower motor, or ignition problems. A professional HVAC inspection can pinpoint the exact cause.


4. Furnace Blows Cold Air

Solution: Check Pilot Light and Gas Supply

If your furnace is blowing cold air, it could be due to an extinguished pilot light, a gas valve issue, or a malfunctioning thermostat. Relighting the pilot light or checking your gas supply may resolve the issue.


5. Furnace Cycles On and Off Frequently

Solution: Inspect the Thermostat and Air Filter

Short cycling can be caused by an improperly set thermostat or restricted airflow due to a dirty filter. Adjusting the thermostat settings and replacing the filter can help maintain consistent heating.


Keep Your Furnace Running Smoothly This Winter

Don’t let furnace problems leave you in the cold!

Located in Chattanooga, Tennessee, we’re here to keep your home warm and comfortable all season long.

If you need expert furnace repair or maintenance, call AIR SOLUTIONS HVAC at 423-304-5898 or

Request A Free Quote today.

Let’s Get Your HVAC System Running Like New!


Why wait? Whether you need a repair, replacement, or maintenance, Air Solutions Heating & Cooling is ready to help. Call today for expert AC repair in Chattanooga, TN and beyond!

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By AIR SOLUTIONS HVAC December 18, 2025
Living in Chattanooga, Te nnessee means experiencing hot, humid summers and chilly winters. Your HVAC system works overtime to keep your home comfortable year-round. But without regular maintenance, even the best systems can falter when you need them most.​ The Importance of HVAC Maintenance Regular HVAC maintenance isn't just about preventing breakdowns; it's about ensuring efficiency, safety, and longevity. Here's why it's essential:​ Enhanced Efficiency : A well-maintained system operates more efficiently, reducing energy consumption and lowering utility bills.​ Extended Lifespan : Routine check-ups can extend the life of your HVAC unit, delaying the need for costly replacements.​ Improved Air Quality : Cleaning and replacing filters ensures the air circulating in your home is clean and free from allergens.​ Peace of Mind : Knowing your system is in top shape provides comfort and confidence, especially during extreme weather conditions.​ What Does Maintenance Involve? At Air Solutions HVAC , our comprehensive maintenance services include:​ Inspecting and cleaning coils​ Checking electrical connections and wiring​ Testing system controls and thermostat operations​ Replacing or cleaning air filters Inspecting the heat exchanger and burner assembly​ Checking for gas leaks and ensuring safety controls are operational​ Regular maintenance not only keeps your system running smoothly but also identifies potential issues before they become major problems.​ Affordable Maintenance Plans Understanding that every homeowner has unique needs, Air Solutions HVAC offers tailored maintenance plans: Bronze Package : Annual check-up with essential services to keep your system in check.​ Gold Package : Bi-annual visits, priority service, and discounts on repairs.​ Platinum Package : Comprehensive coverage with additional perks like service call waivers and significant discounts on new systems.​ These plans are designed to provide value, convenience, and peace of mind.​ Don't Wait Until It's Too Late Proactive maintenance is the key to uninterrupted comfort. Don't wait for a breakdown to think about your HVAC system's health.​ Our team is dedicated to keeping Chattanooga homes comfortable, efficient, and safe all year long. Call Air Solutions HVAC today at (423) 304-5898 to schedule your maintenance service or to learn more about our maintenance plans.
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