K40 with grbl mini board and LightBurn
Start up: power/light switch does not work, switch laser on laser homes and is ready but ammeter reads 20 amps and power switch/light now works. Ammeter reads 20 amp but reduces to normal when cutting.
I have had to replace the LSP and purchased stock K40 replacement. All wiring is as original but now power on switch only works once laser is activated and this turns on laser beam and power switch now works.The laser works but does not stop after cutting and remains on continuously. Any suggestions please.