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Old 11-25-2020, 07:21 PM   #2
bobxyz
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Join Date: Aug 2014
Location: Boulder CO
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The pictures posted here
https://www.msextra.com/forums/viewt...?f=101&t=70950

shows that the J702T ignitor is not a true logic-level ignitor, but needs high current drivers. The wasted spark board uses a ATtiny24A chip, which probably can't reliably supply enough current and, over time, burns out.

Try using a different dual ignitor, or a pair of the standard Bosch ... 124 ignitors.
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