Need help troubleshooting continuously running Auger on Enviro Maxx

[VTrider]

14yr old Enviro Maxx overheated, tripped high temp sensor & shutdown accordingly. The day before thought I noticed a 'crunching' sound while auger was turning. Emptied hopper (did not check under auger cover in hopper) & did not see any obstructions. Reset high temp sensor & gave stove full cleaning.

Upon startup, Auger motor run continuously & sounds like when bearings go bad. It will intermittently start cycling normal, but will eventually go full throttle. Vacuum hose seems to be clear & no noticeable problems on control board when visually inspected - triacs / relays, etc. have no visual overheating/scorch marks.

I'm guessing I should be replacing the auger motor (1st?) and/or the control board? My multimeter skills really suck so I'm kinda winging it. Any suggestions will be greatly appreciated as well as any recommended online parts dealers, thanks in advance!

 

[johneh]

In order for the auger to run continusly it must be fed 120v.
If there are no crossed or shorted wires, the control board is at fault .
Disconnect one of the yellow wires at the vac switch auger should stop.
If it does not, the yellow wire has a short to the auger motor. If it does
check wiring to the control board Loose or shorted to another wire
But I suspect a bad control board!

 

[Ssyko]

One of the lil black squares are shorted closed. The boards are repairable 😏

 

[VTrider]

When either of the yellow wires attaching to the vacuum switch are removed, the auger does stop. I inspected the wire harness & didn't see any problems. When I looked at the control board a little closer, there is an ever so slightly discoloration (photo). Photo D is what is on the other side of that area.

So my hunch is that it is a control board issue. It was mentioned that they are repairable (which is more attractive than a new $400.00 board), Do members here offer this service?