Intermittent high pitched noise when gas dryer runs

Dryer Repair
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1

There is an intermittent high pitched noise from my stack-able Frigidaire LGQ332DS0 gas dryer when running. The sound occurs immediately following the end of the ignition flame (orange glow) sequence. It then continues for the majority of the cycle. The dryer works fine and all of the clothes dry as if it were normal operational conditions, but the noise is quite annoying. Any solutions?

I was thinking about changing the gas valves, but wanted to see if that was the right direction to go.

3

I removed the orifice from the burner, cleaned it out with a toothpick, and removed all the other lint/dust from the burner unit. It seems to have done the trick, no more high-itch noise.