I'll check both.
I have a Duet Wifi v. 1.02 in a seemeCNC Artemis that has been plagued with heater faults. I finally gave up trying to find the problem at the hottend and put a multi-meter on the board itself. It appears I have a short between E0 heater E0- and power in GND.
Is there a replaceable fuse, or do I need a new board? If a new board, is there a trade-in discount for the old one?