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April 15th, 2021, 12:20 pm
#1
* Abilene ** Abilene *
  • Joined: October 26th, 2018, 11:53 am
  • Posts: 3

I bought my YS640 in July, 2018 so it's still under warranty. The last three cooks, in both cold and warm weather, the fan has been acting odd. I turn it on, the fan starts fine, and after 2-3 minutes, is starts to go fast and slow in an intermittant manner. It's almost like a truck engine chugging up a steep hill - fast, then slow almost to the point of stopping, then fast, the slow. A lot of smoke get thrown out, almost like a stick burner. After about 10 minutes, so far, it goes to normal and works throughout the cook. Any ideas what is going on?

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