Marlin 2.0 thermal error

[Yellowbelly]

Hi Guys

Iv upgraded my A10m to marlin 2.0 but now I'm getting random thermal errors and my prints are stopping even if I just pre heat pla and leave it for a while it trips out?

The temps aren't fluctuatin wildly..iv checked the plug to the print head and it is secure..did not happen on any of the geeetech firmwares.

Any advice would be much appreciated.

Cheers

Phil