I've never had the first issue with either of my Mavericks. I know a few on here have mentioned they had some problems with their 72, but I've had it nearly it a year, and it's still kicking strong.
Lang 36" Original Patio (Jessica), WSM 18.5 (Bullet Bill), Char-Broil Commercial Series 4 Burner gasser
Thermapen, Maverick ET73, Maverick ET72
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