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Old 02-21-2020, 10:51 AM
barry12345 barry12345 is offline
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Join Date: Oct 2012
Posts: 5,901
Get a can of cold spray. Put a battery or booster cables on. Turn the rear defroster on. Spray a vertical pattern down through all the strips after letting them warm for a minute. You should see if all are heating or not.

Unless breaks are always visable to the eye you have to power it up. A hand held spot temperature reader would also do it. Read the strips from the inside though.
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