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post #12 of (permalink) Old 23rd February 2009
Technical Supremo

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Sounds like whatever is casuing the humming noise is draining the battery. It may be a case of listening diligently with a long screwdriver pressed against your ear as a sounding stick to trace it down though. Or setting up a voltmeter between the positve terminal and the battery and then removing each fuse in turn to trace which circuit is causing the problem
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