I just received a new power pcb unit because there was a problem with the old one. Installation went fine, also preheating, but when I started roasting I soon got the A-01 error and noticed that the exhaust fan doesn’t spin, only in cooling mode on maximum speed.
I updated to the latest firmware (512) and unplugged the roaster as requested. When starting the roaster again, the front display stays black, no voice, only the power pcb fan spins at high speed and a red LED on the backsied of the pcb flashes (LED is right next to the programming connector).
Anyone who has faced this issue before and knows how to solve it?