Check all the connections to the hotend, check any bare wires aren’t touching and check that connectors are properly connected to the board. Just because they are hot-melt glued in position they may still come loose, remove glue and reseat the connectors.
We’re do I find hotend I’m completely new please sir
Its the nozzle, heater assembly essentially, that and the extruder too but we aren’t looking at that. Remove the cover of the printhead, I think it is 3 off M3 allen screws, 2 on the right. Then check all the wires to the heater and where they connect.
Okay done still giving error any other ideas sir