If you are using your 400,000 BTU direct fired heaters and the flame-sensing rod detects a burner failure, that is often the result of excessive buildup on the flame-sensing rod. This is an issue that many of our clients are able to address on their own.
How to Clean Your Flame-Sensing Rod
Watch the video below to learn out to clean buildup off of your 400,000 BTU direct fired heater’s flame-sensing rod.
Transcript: So these are our 400,000 BTU direct fired heaters. They’re slightly different than another model we have, but they’re the same BTUs, just different make. Slightly different in the igniters.
In here you’ll see there are spark rods, and you’ll see the post that sticks out right here, that’s actually the flame-sensing rod.
So, if that rod is not sensing flame, it will sense that there’s a burner failure. What also will happen is you’ll have buildup, as you can see, there’s a slight buildup.
So you’ll take a piece of cheesecloth, light sandpaper, or even a dollar bill and gently coax both the flame-sensing rod and gently coax the spark rod.
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