Hi all,My Tekin RS Pro will chime when caliberated but wont arm,also if when I put my ear up close to the unit is makes a small pulsating noise every second as if it is ticking over.The display shows the first two lightS and last two lights on the display..I have tried many neutral widths..It has the latest software in it..also blinkey mode set..Anyone HELP please..I dont want to give up on a fab ESC..tHANKS IN ADVANCE..
