M200+ with HEPA cover:. I was pleased that at last, the warm up time issue was being addressed. I have added insulation under the platform to improve this before the FW update. I printed 3 small Nylon jobs consecutively no problem. Next time the hot end would not heat up. Support suggested i start swapping components with my other M200 to locate the problem. The Hot End PCB has burnt out on the hot end heater circuit.
Its the platform that delays the warm up process not the hot end but i have put my 2 M200+ back to the old version to prevent it happening again.