So awhile ago I was upgrading the coolant pump on my torqcut 22. Unfortunately the circut could not handle the larger pump and when the fuse blew I was stupid and used the only one I had which was 2 amps larger. Anyway, I fried the AUF board. It has since been replaced with a board that was pulled from a working machine. Everything seems to be working fine except now the coolant pump receptacle is always hot when the machine is turned on. I haven't plugged the pump in yet but was checking everything with a multimeter before I toasted another AUF. I have checked the parameters for flood coolant and they reflect the state of turning coolant on via the panel button.

Any ideas before I relegate myself to having to wire a physical switch to manually turn coolant on and off? Is there differences in AUF boards from different machines? Both my old one and new one have the same part number on them but I don't know if the new one came out of a lathe or a mill.

Thanks as always if anyone has some incite.