REX C-100 pid settings query.?

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Joined May 10, 2021
Hi fellows
I made my self a high temp furnance for making highly conductive carbon. I use the pid controller rex c100 thats able to work upto 1300 degree C. All works fine, but after i tryed to set all the parrameters to default settings, according to a youtube video called “ REX-C100 settings” by Furnances tools made 4 years ago, now i cant access the code (COD) menu. Before i did what the guy in the video, i was able to get to the COD menu by pressing set+< normal way to access the menu. But now nothing happens ?? Anyone here have a workarround to access the COD menu, or a way to reset the rex c100 to factory default. ??
Best regards Mike.
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