08-09-2004
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Junior Member
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Join Date: Dec 2001
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Autohelm noise
I recently noticed a "high-pitched" tone coming directly from my Autohelm 4000 command box in my cockpit. I shut off all other electronics and the sound still remains. The unit is only about a month old. Naturally, when I shut off power to the unit, the noise is absent. Any ideas?
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