Troubleshooting: Difference between revisions
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Remove the switch and connect the negative of the battery to the body of the light. A paperclip is useful for this. Make sure you find a bare metal part, most metal coatings and anodizing do not conduct electricity. | Remove the switch and connect the negative of the battery to the body of the light. A paperclip is useful for this. Make sure you find a bare metal part, most metal coatings and anodizing do not conduct electricity. | ||
If it lights up, the problem is in the switch. | If it lights up, the problem is in the switch. Here is an [http://www.candlepowerforums.com/vb/showthread.php?t=236906 excellent guide] on using a voltmeter to test flashlights. | ||
If it still doesn't light up, it is time to investigate the head end. Do the batteries touch the positive contact? Batteries can be a bit shorter or longer than they are meant to be. If you need a spacer make sure it can't short out the batteries, this can have unpleasant effects. | If it still doesn't light up, it is time to investigate the head end. Do the batteries touch the positive contact? Batteries can be a bit shorter or longer than they are meant to be. If you need a spacer make sure it can't short out the batteries, this can have unpleasant effects. | ||