Ender 3 pro heating problem

[Jgalvoza]

Hello,

I have a problem with the heating of the nozzle and the bed of my ender 3 pro. Whenever I put the printer to heat both elements a the same time she starts the process and 5 second later it reboot.

I tried to heat the nozzle and the bed separately, and the y work, even i can heat both if the bed is already hot. The problem is when both are cold and I give them the command to start heating.

I have checked the power supply and the voltage and they're good.

Did anyone have this problem before?

[davemaster]

Test current, search for burned power cable, and loose connections. Try to heat both elements but separately