VM8201 - Stand Alone Controller - Temperature problem

Hi!

I’ve got the VM8201 - Stand Alone Controller. It is working.
But…
When I have printed one part the nozzle temperature goes down from 190 C to room temperature.
But the heatbed doesn’t do the same! This causes problem cause when I’ve printed I want to be able to take the part of the heatbed.
Cause when I arrive maybe 10min after the print the printbed is still worm… display showing: 50/50C. I want it to show for ex.: 22/0C.

I don’t want to have to turn of the printer each time, big waist of time, I’ve have to much to print!
Must I change anything in arduino code. If so, then what?

Help please!

I don’t have a VM201.
But from what I have read you can push the rest button in the bottom of the VM201.
That will turn the heaters and fan off.