blink led 12f683

[ScaleRobotics]

Try adding another pause statement. It is probably going low for about 1/4000000th of a second or so.

to this:

Fan:
   high fanon
   high ledflasher
   pause 1000
   low fanon
   low ledflasher
   pause 1000
goto Fan
end

Oops, yeah, what Nicmus said!