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When your furnace starts acting up, identifying the root cause can be tricky. One potential culprit is a faulty flame sensor. At Rooter Hero Plumbing & Air, we’ve seen firsthand how a bad flame sensor can disrupt your heating system and cause unnecessary stress. So, how can you tell if your flame sensor is the issue? Let’s break it down.
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Before diagnosing a faulty flame sensor, it's important to understand what this component does. The flame sensor is a safety feature commonly used in modern gas furnaces. Its primary role is to ensure the gas being supplied to the furnace is igniting properly. It detects whether the flame is burning and communicates this information to the control board. If the flame sensor doesn’t detect a flame, it will immediately shut down the gas valve to prevent gas buildup and the risk of a fire or explosion. It acts as the furnace’s “fail-safe” mechanism, so you can avoid potentially dangerous situations. With HVAC systems, this sensor works in conjunction with other safety mechanisms to make sure that your furnace operates efficiently and safely. If you notice issues with your heating system, such as it frequently shutting off, it may be time to contact an HVAC specialist in Redwood City or seek furnace repair.
You may have heard the terms "flame sensor" and "thermocouple" thrown around when it comes to furnace maintenance, but these components are not the same thing. While both are essential for the safe operation of gas furnaces, they serve different purposes and are found in different types of furnaces.
If your furnace has a pilot light, it’s likely you’ll need a thermocouple. In contrast, newer furnaces with electronic ignitions use flame sensors. Identifying which one your furnace uses can help an HVAC company technician quickly diagnose the problem.
A malfunctioning flame sensor can lead to several noticeable problems. Ignoring these signs may lead to larger issues that require furnace repair in Carmichael or even heating replacement. Here are eight common indicators that your flame sensor may be on the fritz:
While some flame sensor issues can be resolved by cleaning the sensor, there are instances when replacement is the best course of action. So, when should you opt for a replacement?
When replacing your flame sensor, make sure you have a qualified HVAC specialist or technician handle the job. Although replacing a flame sensor is not the most complicated of tasks, ensuring it’s done correctly is essential to the safe operation of your furnace.
Dealing with furnace issues can be frustrating, but identifying a faulty flame sensor early on can save you a lot of trouble. If you're experiencing any of the signs mentioned above or suspect that your flame sensor might be bad, get in touch with an HVAC company like Rooter Hero Plumbing & Air. Whether it’s routine maintenance, furnace repair, or even a full heating replacement, we’re here to help. Contact us to schedule an inspection.
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