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Do you really know how your furnace works? Inside that heat-producing appliance are a lot of vital components. One is the furnace limit switch, also known as a furnace high limit switch and furnace ...

It's cold outside, and the furnace kicks on like normal—well, except for that strange sound. "Why does my furnace keep clicking?" is a common question from homeowners. And while there's no such thing ...

Winter weather puts your furnace to the test. After months of being dormant, the system suddenly finds itself working overtime. While it should cycle throughout the day, clicking on too frequently may ...

Have you ever heard of a furnace heat sensor? This little device, also known as a flame sensor, is an important component inside every furnace. It's an added safety feature designed to prevent carbon ...