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Why the Ignition System of Your Furnace is Malfunctioning

By House and Home Co. / Published on Tuesday, 03 Apr 2018 10:09 AM / Comments Off on Why the Ignition System of Your Furnace is Malfunctioning / 195 views

Plumber fixing gas furnaceThe furnace is a huge appliance that provides any household or commercial building a reliable source of heated air. This is especially helpful during the cold winter months, so you can maintain an ideal temperature indoors and not go shivering.

Why Furnaces Break Down

If you find that the igniter of your furnace is sparking but isn’t catching fire, the ignition system might be malfunctioning. While there could be various reasons for this, Desert Star Heating and Air and other furnace repair specialists in Riverton list some of the most common ones:

The Pilot Lines are Damaged – The pilot lines feed gas to the pilot and enable the burner to cycle. These lines could be blocked, most commonly near the pilot ignition section. Mechanical failures inside the furnace could damage and bend the pilot line and burning fuels produce moisture, which could in turn lead result in rust buildup. Bent pilot lines would decrease the gas load and lead to a malfunctioning ignition system.

The Wiring of the Pilot Valve is Loose – The pilot valve is an electronic solenoid responsible for releasing gas to ignite the pilot. The pilot valve wiring is tasked to send signals to the pilot valve, so if this is loose, it won’t be able to do its job.

The Pilot Gas Valve is Malfunctioning – This releases the ignition gas and it could be malfunctioning due to mechanical damage or wear and tear. If this breaks, it would hinder the gas from igniting the burner or even getting into the pilot.

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The Pilot Orifice is Obstructed – Heat and moisture could result in the pilot line corroding and deteriorating over time. When this happens, the damaged line could become blocked and reduce gas flow.

The Control Module is Faulty – The control module is an electronic unit that regulates the cooling and heating cycles of the HVAC. A damaged control module would impede the connection of your thermostat and furnace and lead to a wonky ignition.

Can You DIY

HVAC repair specialists are capable of quickly diagnosing the issue and resolving it. While fixing a furnace would require working with hazardous gas or electrical systems, below are two fixes that you could do safely on your own:

Inspect your gas line. Find the gas line and its switch and make certain that it’s not partially closed or turned off.

Clean or replace air filters. Filthy filters limit the airflow and negatively impact your furnace’s overall performance.

It’s crucial to note that your furnace uses gas and electronic systems for heating, and trying to fix it without training could lead to damage not only to your house, but also to you and your family. Do-it-yourself repairs could likewise make existing issues problematic, which in turn lead to more costly repairs. That being said, it’s best to leave the repairs to professional technicians.