Gotcha.....I'll check that. But would that explain the other two not heating up/outputting voltage? I tried turning on only the bed and got no temp rise or voltage. Is there a line of code that turns these on? Also, I've seen some other posts of similar issues where people were talking about checking to see if the board type is set as 33, do you know where this setting is? I have not confirmed this and don't remember ever setting this, only set the board type as "Mega 2560 or Mega ADK" in the Arduino/Tools menu.
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