Working Code

i=1
local function reactor()
  if rs.getOutput("back") == true then
    print("OFF")
  else
    print("ON")
  end
end
local function reactor2()
  if rs.getOutput("back") == true then
    rs.setOutput("back",false)
  else
    rs.setOutput("back",true)
  end
end
local function coolant()
  if rs.getOutput("left") == true then
    print("OFF")
  else
    print("ON")
  end
end
local function coolant2()
  if rs.getOutput("left") == true then
    rs.setOutput("left",false)
  else
    rs.setOutput("left",true)
  end
end
local function uranium()
  if rs.getOutput("right") == true then
    print("OFF")
  else
    print("ON")
  end
end
local function uranium2()
  if rs.getOutput("right") == true then
    rs.setOutput("right",false)
  else
    rs.setOutput("right",true)
  end
end
local function run()
  term.clear()
  term.setCursorPos(1,1)
  while i == 1 do
    textutils.slowPrint("-=Reactor Control V.18=-")
	sleep(1)
    write("  -Reactor Status: ")
    reactor()
	sleep(1)
    write("  -Coolant Flow: ")
    coolant()
	sleep(1)
    write("  -Uranium Refill: ")
    uranium()
	sleep(1)
    print()
    textutils.slowPrint("What option would you like to change::")
    textutils.slowPrint("reactor   |   coolant   |   uranium")
	sleep(1)
    write("Type Option: ")
    input = read()
    if input =="reactor" then
      reactor2()
	  run()
    else
      if input =="coolant"then
        coolant2()
		run()
      else
        if input=="uranium"then
          uranium2()
		  run()
	    else
	      textutils.slowPrint("Error Please Type One of The Options.")
		  sleep(.5)
		  run()
        end
	  end
	end
  end
end
run()