Strange Noises: Your heating system should operate quietly. Banging, rattling, squealing, or scraping sounds can indicate loose or broken parts that need immediate attention.

Weak Airflow: If your vents are not pushing out warm air with sufficient force, it could signal a problem with your blower motor, a clogged air filter, or issues with your ductwork.

Inconsistent Temperatures: Are some rooms a sauna while others are freezing? Uneven heating suggests your system is not distributing heat properly. This could be due to a faulty thermostat, a struggling furnace, or ductwork issues.

Unusual Odors: A burning smell might mean an electrical issue or overheating components. A musty smell could be a sign of mold or mildew in your ducts. If you have a gas furnace and you smell a rotten egg odor, this is a serious and immediate sign of a potential gas leak. Turn off the system and contact a professional immediately.

Short-Cycling: If your furnace turns on and off frequently, this is a clear sign of an issue. It can be caused by a dirty filter, an overheating system, or a problem with the thermostat. This puts unnecessary stress on your unit and reduces its lifespan.

Increased Energy Bills: A sudden and unexplained spike in your heating bills could mean your system is losing efficiency and working harder than it should to heat your space.