10" relay clicking in and out
Hello,
im having some issues with my relay. When I set the printer to auto heat or send it a print it starts to heat the nozzle and then the relay for the print bed cuts in and then just clicks in and out. It's clicking roughly every half a second. This doesn't stop until I cut it out as the wires to the relay board started to get hot.
i measure 12v at the D8 port and when I wire the relay direct to 12v it fires too. I'm wondering if the signal through D8 is too fast for my multimeter and it's actually pulsing.
Now, just for reference I have changed to the large display and updated the code to reflect this and I've not really used the printer in a while due to a house move so I can't remember whether this issue was apparent since I changed it. And I finally have the requirement for an urgent print as my bbq is broken and I need to print a new part for it!
Any thoughts?