As the weather cools down, your heating system kicks into gear—and sometimes, it doesn’t work quite the way it should. From strange noises to uneven heating, many common issues can disrupt your comfort and drive up your energy bills.
Here are the top 10 heating problems we see most often—and what they usually mean for your system.
1. No Heat or Insufficient Heat
This can be caused by thermostat issues, pilot light problems, or faulty heating elements.
2. Frequent Cycling On and Off
Also called short cycling, this can signal a clogged filter, improper airflow, or a failing thermostat.
3. Strange Noises
Banging, rattling, or squealing noises often point to loose or broken parts, or issues with the blower motor.
4. Uneven Heating
Some rooms feel warm while others stay cold—possibly due to duct issues, poor insulation, or an aging system.
5. High Energy Bills
If your heating costs are creeping up, your system may be working harder than it needs to because of leaks, dirty filters, or outdated equipment.
6. Pilot Light Won’t Stay Lit
A common problem with gas furnaces that can be caused by dirt, faulty thermocouples, or gas flow issues.
7. Thermostat Problems
Old or malfunctioning thermostats can cause your system to run too long, too short, or not at all.
8. Dirty or Clogged Filters
Restrict airflow and reduce system efficiency—filters should be checked and replaced regularly.
9. Ignition or Furnace Keeps Shutting Off
Could be due to flame sensor issues, dirty burners, or overheating.
10. Burning Smell When Heater Turns On
Sometimes just dust burning off after a long off-season—but persistent smells could mean wiring or mechanical problems.
Need Help? Aire Serv of Bel Air Has You Covered
Many of these issues can be fixed quickly with routine maintenance or small repairs—before they turn into expensive replacements. Aire Serv of Bel Air’s experienced technicians know how to diagnose and repair heating problems promptly and professionally.
Don’t wait for a cold snap to find out your heater isn’t working right. We’ll keep your home warm and worry-free.
