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Author Message   Billcorrigan Tinkerer Username: Billcorrigan Post Number: 1 Registered: 08-2009 Rating: N/A Votes: 0 Posted on Sunday, August 23, 2009 - 02:31 pm:    I have two Canolite ED flash units. I put in new batteries in each and the ready light comes on and lights on both units but neither flash will fire when attached to my Canon 110ED camera. I would appreciate some guidance as to what I should be checking or looking into. Is there something inside the flash unit that I should check?