So recently my furnace has been going in and out every three to five days. I’d wake up freezing in the morning which is an indicator that the pilot light was off, so I’d go down to the basement with the candle lighter and sit on the floor for two minutes while holding the pilot light knob in to make sure it would stay on.
In such cases a new thermocouple is most likely what’s needed to fix this problem because it tells the furnace to continue to let out gas if there is a flame, and in my case the thermocouple was telling the furnace to stop releasing gas because it could not register a flame even though there was one. I learned all this from my buddy #NormanY.
So after spending a good amount of time trying to figure out how to wiggle the bracket out without breaking anything, there it was. And you can see on the left how burnt the tip of the thermocouple was, so it definitely needed replacement.