There is a high pitched noise that is coming from my oven. I have pinpointed that the noise is coming from the oven pilot light, and it is most audible when the oven is off.
When the oven is off, the sound is a high pitched tone, around 4200 Hz. I recorded a sample of what it sounds like, you can listen here:
If I gently blow on the pilot light, I can hear the pitch changing slightly or go in and out.
If I turn the oven on, the sound seems to go away, or at least gets quieter and lower pitched.
What could this be?