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They are one piece, so you would have to replace the entire unit.
Sorry, there was a problem. Please try again later.Both of mine still work but they are separate units and operate independently of each other so it is possible if one failed the other would work. But depends if the electronics fail then both may not work. Hope it helps.
Sorry, there was a problem. Please try again later.This is a combination unit. It cannot be separated. ^CP
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