Question about Canon Cameras
This sounds like an electrolytic capacitor in the external flash failed, and needs replacement. They're critical components of the flash unit, and do go bad in time. Usually replacing them restores the unit to a "new-like" state, and will revive the unit for years.
Another problem could be occuring with the camera circuitry, but not likely.
You can change out these caps, and they are usually available at Radio Shack.
Wish I could offer a simpler solution,but this is what I think is happening.
Good luck,and hope this helps.
Posted on Mar 14, 2011
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Posted on Jan 02, 2017
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