10 Common Furnace Problems

As a homeowner, it’s easy to overlook common furnace problems. However, the best way to avoid these issues is through regular maintenance checks. Ensuring your furnace is in good working condition, especially during the cold season, provides your family with a safe and warm home. It’s crucial to recognize when professional intervention is necessary to diagnose specific problems.

A well-operating furnace should be quiet, noise-free, and efficiently circulate heat throughout your home. When the furnace is working correctly, each room will feel warm and cozy during the colder months. You won’t need to worry about the blower expelling cool air or the risk of carbon monoxide poisoning. On the other hand, an outdated system can fail to maintain a warm home, increase your utility bills, and potentially degrade your indoor air quality.

10 Common Furnace Problems and How to Maintain Your Furnace:

1. Strange Noises

If you hear unusual sounds like rattling, popping, or squeaking coming from your furnace, something is definitely amiss. Inspect the belts in the mechanical section of the heating compartment. Loose belts should be replaced immediately as they pose a danger. If the noises persist, contact an HVAC expert.

2. Furnace Refuses to Heat

If your furnace stops heating, don’t panic. Start by checking the fuse and the main electrical panel, as well as any sub-panels in the furnace. The circuit breaker may have tripped, which you can reset by turning it off and then on again.

3. Over Cycling

Frequent cycling between on and off modes can indicate a clogged filter, poor airflow, or improper thermostat settings.

4. Blower Always Running

If you constantly hear your blower running, it could be due to a malfunctioning limit switch. A professional should replace this component.

5. Pilot Light Issues

The color of your pilot light can signal carbon monoxide leakage. If it’s any color other than blue, such as yellow, green, or red, it means the combustion isn’t optimal. This could also indicate blocked components or a malfunctioning electrical element.

6. Furnace Won’t Turn On

If simply switching the furnace on doesn’t work, check the ignition system. The ignition is critical as it sparks the heat. Should the ignition fail, calling a professional is your best bet.

7. Dirty Filter Causing Bad Air

A clogged filter restricts airflow, overworking the furnace. Dirty filters can also cause the limit switch, which controls the fan, to malfunction.

8. Thermostat Issues

A faulty thermostat can lead to fan problems and affect overall comfort levels. The thermostat is the heart of your furnace, and regular servicing is crucial to prolong its lifespan.

9. General Wear and Tear

Average wear and tear can hinder the performance of your thermostat and increase your monthly energy bills.

10. Higher Energy Bills

Upgrading or purchasing a new furnace can offer significant benefits. While self-maintenance is good, consulting a professional or upgrading your system is better. Review fuel types such as gas, electric, or oil-operated furnaces to determine what suits your needs. Also, consider air quality and ensure your new system maintains clean air. Ask your technician to inspect your current air ducts and filters. When buying a new furnace, choose the best model you can afford, focusing on efficiency and energy-saving features. Check the warranty as it typically does not cover labor costs, and look for rebates and incentives.

A reliable furnace ensures your home is safe from carbon monoxide and provides peace of mind by maintaining a comfortable indoor environment. A clean and well-maintained furnace also means cleaner indoor air, free from harmful pathogens. Dependable operation ensures your home stays at the ideal temperature, helping you avoid high monthly bills.

Contact MillTown Plumbing, Heating, Air Conditioning, and Drain Cleaning today to learn more about common furnace problems and how to maintain your system!