A propane furnace is built to last, but it will require occasional maintenance over the years. There are many reasons for repairs, and recognizing early signs will help you tackle the problem before it damages your system further. Below are several examples, including ways to prevent issues.

How to Recognize When You Need Furnace Repairs

1. Weak, Uneven Heating

An efficient propane furnace will blow heated air throughout your home and evenly distribute it. If you notice your home isn’t as warm as usual or there are cold spots, there may be an issue with the blower. This component pushes air into the ductwork. If debris is wearing down parts, or if the circuit board is malfunctioning, it will have to work harder.

Technicians may only recommend a cleaning—which should be done each year—to remove dust and buildup. In other cases, the blower may need fresh wiring or a new circuit board.

The blower may also be working harder because the air filters are clogged, obstructing airflow. Check these filters once a month and replace them when a gray film forms on the surface.

2. Higher Energy Bills

A faulty furnace will use more energy, leading to higher energy bills. If you notice you’re spending more money each month, leaking ducts and blocked air filters may be to blame.

A dirty heat exchanger and flame sensor may not read the temperature properly and run the appliance more than needed. The same happens if your thermostat isn’t reading indoor temperatures correctly.

Technicians will thoroughly clean dust and buildup from these sensors during your yearly inspection. They’ll also calibrate the thermostat to ensure accurate readings.

3. Strange Sounds & Smells

Slight booming and humming is normal and often comes from the heating element and ductwork as it expands. You may also notice a faint burning smell because your furnace is incinerating dust when you first turn it on.

Should the booming grow louder, or if you hear squealing and clanking, schedule an inspection. Parts may be jostling loose, or a technician may need to lubricate components to reduce friction. A rotten egg smell, caused by the mercaptan propane distributors put in the fuel, could also signal a gas leak.

If you’re in Roanoke, AL, and overdue for a furnace inspection, contact Superior Gas. These technicians have served the area for 68 years, and as a family-owned and -operated company, they’re committed to keeping customers comfortable. They deliver high-quality clean-burning fuel and help with appliance maintenance. Visit their website to learn more, or call (256) 396-2428 to schedule a gas refill.