What Are Common Furnace Problems?

Owning a home inherently comes with the responsibility of maintaining its many systems and components, and it may often seem like something always needs fixing. From leaky faucets to malfunctioning appliances, the list of potential issues can be overwhelming, especially when it comes to more complex systems like furnaces. Identifying the root of the problem can pose a significant challenge for many homeowners. At Van Drunen Heating & Air Conditioning, we understand these challenges all too well. With 50 years of experience, we have dedicated ourselves to helping homeowners diagnose and resolve furnace issues efficiently. In this post, we’ll go over some of the most common furnace problems and potential solutions to keep your home warm and cozy.

Common Furnace Problems and Solutions

Understanding common furnace problems is key to troubleshooting and maintaining a healthy heating system. Here are some frequent issues homeowners encounter:

No Heat or Inadequate Heat Production

One of the most frustrating furnace problems is a lack of heat. This issue can stem from a variety of causes, including thermostat settings, ignition problems, or airflow restrictions. Double-check your thermostat settings first. If the settings are correct and the issue persists, further investigation into ignition or airflow systems might be necessary. Additionally, a dirty filter or a malfunctioning pilot light can also cause heat production issues, so regular maintenance and cleaning are essential.

Unusual Noises

Furnaces should operate quietly. If you’re hearing clunking, thumping, or squealing, it’s time to investigate. These sounds could indicate anything from loose components to issues with the blower motor. Addressing these noises early on can prevent more severe damage to your system. Sometimes, unusual noises might also result from a belt slipping or components needing lubrication.

Short Cycling

A furnace that constantly turns on and off—known as short cycling—can wear out components and increase energy costs. This problem often arises from thermostat issues, restricted airflow, or overheating. Ensuring proper airflow and a functioning thermostat are vital steps in resolving short cycling. A common cause of short cycling is also an oversized furnace for your home, leading to rapid heating and quick shutdowns.

Blower Running Continuously

If the blower on your furnace runs non-stop, it could be due to a setting on the thermostat or an issue with the fan limit switch. Examine the thermostat to ensure the fan setting is set to “auto” and not “on.” If the problem persists, the fan limit switch might be faulty and may need replacement.

Frequent Pilot Light Outages

A pilot light that frequently goes out can be a real annoyance and is often caused by a draft, a dirty or bent thermocouple, or a problem with the pilot assembly. Ensuring that the pilot area is clean and debris-free and adjusting the thermocouple, if needed, can help maintain a steady light.

Limit Switch Malfunctions

The limit switch in a furnace helps protect against overheating by turning off the burners if the system gets too hot. If this switch malfunctions, it can cause the blower to run continuously or lead to short cycling. A faulty limit switch often requires professional inspection and replacement to ensure your furnace operates safely and efficiently.

Uneven Heating

If some rooms in your home are warmer than others, it could be due to ductwork issues, poor insulation, or an imbalanced heating system. Checking for any obstructions in the vents, sealing any leaks in the ductwork, and ensuring your home’s insulation is adequate can help resolve these discrepancies.

Consequences of Ignoring Furnace Problems

Ignoring furnace problems doesn’t just lead to discomfort; it can also pose significant risks to your home and health. A malfunctioning furnace can cause your energy bills to skyrocket due to decreased efficiency and may require more frequent and costly repairs over time. Additionally, a faulty furnace can become a safety hazard, with the potential to cause carbon monoxide leaks that could be dangerous or even life-threatening. That’s why it’s important to regularly maintain and inspect your furnace for any issues.

Knowing When to Call a Professional

While some furnace problems only require a simple fix, knowing when to call a professional is essential. If you’re unsure about the cause of an issue or are not comfortable attempting repairs on your own, it’s best to leave it to the experts. Attempting fixes on your own without proper knowledge and experience can cause further damage and potentially put your safety at risk.

At Van Drunen Heating & Air Conditioning, our trained professionals are ready to assist with any furnace problems you may encounter. With our skills and dedication to our customers, we’ll work quickly and efficiently to get your system up and running in no time. Don’t let common furnace problems disrupt your comfort and safety. Contact us today for all your heating needs!