i am working on a guys taig mill &it will not run. i think i found out why. the reset button is blinking, but none of the lights are on. it says the e stop is active. it uses a mechanical e stop. in ports & pins e stop is enabled. when i click on it it changes to red, i hit apply. when i try the reset again &try samething. go back into ports & pins & it is turned on again. tow do i turn e stop off? thanks greg