: :This is a photo of both PTU's: : :The recalled PTU has the metallic cover. Is that the "backside" you're referring to? : :Props to YugoBernie for photo. :I have the POST 93 PTU (the black plastic one). The other side of the PTU is a zinc/aluminum plate (not the bracket in the picture). That's where I sprayed the electric cleaner since metal has way better (heat) conductivity and should cool the inside down faster (or so I assume). Thanks for the picture. I have seen it before, but in my paranoia I wanted to see it again to confirm, but all the posts I found have the picture link broken. I am happy that you posted it. Cheers, e.
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