bell box battery change and service?
hi there i got a bit of a problem with my prima 500 bellbox, i am trying to change the battery but every time i remove the cover it goes off in my ear and its rather embarrassing. i have the panel in engineer mode but the bellbox doesn't seem to care and still goes off when i remove the cover, is there a way round this or do i just have to put up with the sound when changing the battery? any help would be great thanks
embarassed diyer, February 2014