Express Plumbing Heating & Air is #1 for heating repair across the Treasure Valley. We’re also committed to helping customers know as much as possible about gas furnace repair. This is important in Idaho’s generally chilly climate. Fortunately, you can count on us to quickly resolve any problem and install any type of furnace or heat pump, but our knowledge and experience with gas-fired units help us stand out in the crowd.

Our team understands the unique heating needs of homes in Idaho, and our technicians are fully licensed, certified, and trained to address any issue. Their promptness and reliability are critical at times when a malfunctioning heater can start a fire, release toxic fumes, and cause other safety hazards. If your furnace isn’t heating your home, temperatures are inconsistent or uneven, or the unit is noisy, leaking, or releasing foul odors, it’s time for gas furnace repair

Here is a guide to help improve your understanding of gas furnaces.

How to Prevent Common Gas Furnace Problems

Preventative maintenance is the most effective way to avoid major furnace problems. It can reduce the cost of repairs and prevent them altogether, and help your heating system last longer. However, there are other ways to avoid gas furnace problems, including:

  • Replace the Air Filter: A clean filter allows for steady airflow so your furnace can run smoothly and efficiently. Less wear and tear means fewer repairs down the road and a reduction in allergies and other issues associated with poor indoor air quality.
  • Open the Vents: Don’t close room vents, even if those areas aren’t occupied. Closing too many vents can disrupt airflow and increase pressure in the system, causing strain that can trigger duct leaks and equipment damage.
  • Keep the Furnace Room Clean: Boxes, toys, or furniture should not be placed near the furnace. These objects can block airflow and make it hard to access the unit when necessary. Check the area often and remove any clutter from around the furnace.

We also recommend these other tips for maintaining a gas furnace:

  • Clean the blower, pulleys, and belts with a damp cloth.
  • Listen for scraping, screeching, banging, popping, or slapping sounds.
  • Don’t store paints, household cleaners, and other chemicals nearby.
  • Maintain at least two feet of clearance around the outdoor unit.
  • Occasionally check that the pilot light is burning blue.
  • Check that the thermostat is working correctly.

In addition, check for signs of gas leaks, including rotten egg odors, hissing sounds, or clouds of dust. Placing water on a suspect gas line is a good test; bubbles indicate the line is leaking, and you need to call a professional.

How to Choose the Right Gas Furnace Repair Company

Cleaning the inside of the furnace cabinet can also help avoid repairs. However, this requires some skills and expertise most homeowners don’t have, so we recommend calling your local heating contractor. Whether it’s time for maintenance or repairs, you need a qualified technician. It’s the best way to save money on gas furnace repair

To find the right gas furnace repair contractor, check that they:

  • Meet state licensing requirements
  • Are accredited with the Better Business Bureau
  • Have several years of experience
  • Use the right tools and equipment
  • Have positive reviews and references
  • Are readily referred by friends and family members
  • Specialize in energy-efficient products
  • Offer written guarantees on products and services
  • Include a comprehensive warranty with each purchase

Gas Furnace Repair vs. Replacement

A gas furnace may need repairs during its life, especially in its later years. A repair can extend the unit’s lifespan and help it run more efficiently. But when is it normal wear and tear or a sign to replace the system? If your furnace is in the 15- to 20-year range, your energy bills keep rising, and the unit has had multiple repairs in the last year or two, replacing it can be more cost-effective. Our gas furnace repair technicians will assess the unit to help you decide if fixing or replacing it is the better option.

Is DIY Gas Furnace Repair Safe?

Being handy may seem like a prudent cost-saving option. However, this can be an extremely dangerous undertaking without the proper tools and knowledge. If you miss something, you could start a fire or receive an electric shock. There’s also the risk of carbon monoxide exposure (you can’t see or smell a leak, but it can get you sick before you realize there’s a problem).

Any mistakes in gas furnace repair can be costly. You could cause more damage, void the furnace warranty, and lose insurance coverage. Therefore, play it safe and call an HVAC company to deal with any potential gas furnace issues. Despite the cost of parts and labor, you’ll still save on any problems you can inadvertently cause.

How to Troubleshoot a Gas Furnace with Error Codes

Gas furnaces have error codes to help identify problems more quickly. These codes vary with each brand. Depending on your furnace, it may have an LED light so you can compare the number of times it flashes and how fast and check it against the product manual. Some furnaces have red and green lights. A flashing light can indicate a flame, limit switch, pressure switch, voltage, control, ignitor, circuit, or sensor issue.

How to Winterize a Gas Furnace

Winterizing the system can prevent gas furnace repairs. Our advice for preparing your gas furnace for winter includes:

  • Change the Filter: A new filter can improve efficiency, avoid frozen evaporator coils, improve air circulation and indoor air quality, and prevent furnace failure.
  • Prepare the Thermostat: Change the batteries and turn up the thermostat to make sure the unit is working. If this doesn’t prompt your furnace to blow warm air, check the wires and call for help if necessary.
  • Install a Humidifier: A furnace can dry out the air in your home. With a humidifier, you can maintain optimal humidity levels, which helps improve comfort and your heating system’s efficiency.
  • Clear Vents and Registers: Move anything that’s blocking airflow. Unobstructed vents and registers prevent the furnace from being strained and contribute to more consistent heating.
  • Schedule a Chimney Inspection: The chimney provides ventilation for a gas furnace. It should be professionally inspected to clean residue and check for issues such as trapped animals.
  • Schedule Furnace Maintenance: To allow your heater to run smoothly all winter, have a professional inspect the system, clean the blower motor and other components, lubricate bearings, and inspect/clean the heat exchanger.

Gas Furnace Safety Tips

Aside from annual maintenance, installing carbon monoxide detectors, and ensuring vents are unobstructed, here are other tips that can avoid safety hazards and gas furnace repair:

  • Vacuum around the furnace every month
  • Don’t store paint, wood, gasoline, and other flammables near the furnace
  • Keep the area off-limits to children
  • Test carbon monoxide and smoke alarms before the winter
  • Pay attention to the pilot light (if it goes out often, flickers, or changes color)

Call Express Plumbing Heating & Air for Gas Furnace Repair

Our NATE-certified technicians deliver prompt and effective heating system diagnostics and troubleshooting, repair, and replacement services. Our installation professionals ensure your new furnace meets the needs of your home. We also provide annual maintenance, tune-ups, and safety checks that keep your heating system running smoothly and efficiently. 

Customers in Boise and surrounding areas rely on us for 24/7 emergency services, and we offer free estimates, unbeatable warranties, and financing options. To schedule gas furnace repair or a new equipment or energy efficiency consultation, schedule your visit online or call (208) 357-9251.

Brad Jordan

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