Question about Masterbuilt ESQ30B Smoker

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Masterbuilt Smoker Model 20070108 Digitial Controller not working. Worked the first time, then no power. I hear a beep when I plug it in, but no display.

The unit worked the first time, when I seasoned it according to the instructions. The next time I went to use it, I heard a beep when I plugged it in, but there was no display on the controller, it appears to be dead. I checked all of the connections and everything is hooked up correctly.

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  • Anonymous Dec 31, 2008

    i just got mine for Christmas, plugged it in to do the pre seasoning and all i get is a beep..Nothing on the display> "What up with this?

  • Anonymous Jan 22, 2009

    my controller is acting up as well. the instructions say to unplug the unit for 10 seconds and it will reset itself. That helped the first time. but since then I have to just keep plugging and unplugging and pressing the buttons randomly and eventually it started working again. frustrating. I haven't had time to check on warranty yet. mines about 8 months old

  • Anonymous Jan 24, 2009

    I bought mine at Cabelas got it home and it would not power up. I had Cabelas replace the digital display and it worked great the first time. Now the same issues, will not turn on but it beeps when I unplug it. Could cold weather affect it? It's a digital display that controls heat and a timer....this is basic stuff in the modern world!! For as little as I get to use this it sure is a pain.


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Keep controller inside when not in use, mine got wet one time and did not work for a while. since then it has not failed. 4 years now.

Posted on Jan 16, 2012

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Take the display back to where you got it from and swap it out with a display model or something. Having a display that controls temperature and a timer is basic electronics in the modern world. Who ever builds these things should be ashamed.

Posted on Jan 24, 2009

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Their support page is at
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Masterbuilt smoker model 20070910 with controller error code eaaf. email:

Hi and welcome to FixYa, I am Kelly
It is telling you that the temp is below 40 degrees F. All you need to do is warm up the temp probe to 40F and it should work just fine. Use a hand held hair dryer or a warmed up shop vac on b.l.o.w to warm it up.

Happy New Year,

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Here is the link for the maunel online in pdf format

the main website says individual parts will be availible for sale soon, main website is

hope this helps

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