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bobbecky · 05-21-2018, 08:38 PM

Those are not 'isolation blocks', but are actually thermal auto reset breakers in the 12 volt circuit. Some are gray plastic like in your photo and some are like in this photo.

05-21-2018, 08:38 PM	#3
bobbecky Senior Member Join Date: Jul 2013 Location: Box Elder Posts: 2,910	Those are not 'isolation blocks', but are actually thermal auto reset breakers in the 12 volt circuit. Some are gray plastic like in your photo and some are like in this photo. Attached Thumbnails __________________ Bob & Becky 2012 3402 Montana 2012 Chevy 2500HD D/A CC