Furnace making popping sound and flame flickering
When the heater kicks on, the supply side produces a high-pitched noise and animal-like popping sounds. The blue flame then flickers inconsistently before the furnace completely stops running.
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In their words
Unedited, grouped by where they were said, most upvoted first within each place, each linked to the thread it came from.
“Last night, I thought I heard an animal upstairs, but when I realized it was only happening when the furnace was on, I went upstairs and took this video”source ↗
“Yes, I noticed the blue flame flickered and then stopped”source ↗
“the supply side on my furnace has been making this higher pitched noise when the heater kicks on.”source ↗
Where this came up
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