No manual control with firmware 540?


#1

While doing a roast to test a replacement control board I received recently, I found myself fighting the roaster to keep the power and fan settings where I wanted them. The board came with v540. The version I was using on my old control board was from March or April of last year.

Did something change in the firmware that forces some sort of auto mode?


#2

I’m not aware of anything in the f/w that would interfere with how you control the roast from either the control panel or s/w. There are some BITs (built-in test) that look for out-of-range data, e.g. checking the minimum IBTS fan speed or continuing Preheat till Bean Temp stabilizes even though Drum Temp has hit the target.

I’ve used f/w 540 since it was released though I did have a bad d/l the first try.

Bruce


#3

Thanks for confirming that this behavior is unusual. I’ve had notihing but troubles since I replaced the control board a few weeks ago. I’m convinced that the used replacement board that SM sent me is defective.