2023年10月5日 · The flame sensor within a furnace was created to ensure that the gas valve is opening only while the flames are burning. Otherwise, toxic gas could build up and result in a leak or fire. Flame sensors can be found in all modern gas …

The flame sensor is a safety component of a furnace located on the interior of the burner assembly. It monitors and verifies whether a flame is burning inside the unit. If the sensor does not detect an active flame, then it will shut the furnace off to avoid a potential gas leak.

2023年1月28日 · The furnace’s flame sensor is a safety device—its purpose is to prevent unburned gas from spilling into your home. How does it do that? The flame sensor detects if your furnace is actually burning its gas and producing a flame.

Here's an in-depth guide to what a flame sensor is for your furnace. We cover how it works, maintenance, troubleshooting, repairing and installing so you can stay warm.

2024年4月17日 · The furnace flame sensor is crucial for your home’s safety, ensuring your heating system operates only when it’s safe. Recognizing malfunction signs and maintaining this component can prevent hazards and costly repairs.

If your furnace is misbehaving due to a dirty flame sensor, you only need to clean the sensor and plug it back in. Cleaning the flame sensor is pretty straightforward, with one key part. That includes what kind of cleaning tool you use to brush the corrosion or …

2025年1月8日 · The flame sensor, also known as a flame rod or flame detector, is a safety device that monitors the flame produced by your furnace’s burner. It’s typically a small, metal rod located near the burner, often coated with a ceramic material.

2021年12月22日 · What Are the Signs that My Furnace Flame Sensor Is Bad? The furnace turns on and then shuts down in 2-30 seconds; The porcelain on the sensor is cracked; There is corrosion or dirt on the flame sensor; How do you test a flame sensor? How Long Do Furnace Flame Sensors Last? Can You Clean a Flame Sensor? How often to clean furnace flame sensor?

2022年4月21日 · How to know if you have a bad flame sensor is quite easy to diagnose. Signs of a bad furnace flame sensor are: This guide explains how to troubleshoot a bad flame sensor. What if Your Furnace Still Doesn’t Work? This part does exactly what it says – senses flame to ensure the furnace has fired.

2022年12月5日 · A gas furnace flame sensor is a safety feature. The flame sensor detects whether the burners are lit when the furnace's gas valve opens. If no flame is detected, the sensor will cause the furnace to shut down to prevent explosions from gas leaks and deadly carbon monoxide poisoning.