Harman P61-2 Blower Fan and auger motor cutting out

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Oct 13, 2015
Just what the title says. The blower fan cuts out randomly on Stove Temp High. Auger motor isn't burnt - in test mode everything fires up.

ESP is clean, combustion and blower fan have been replaced recently.

What about the pressure sensor? Haven't swapped that out.

Any electrical wizards out there know how to test this?

Help appreciated!
What's the fault code flash on the board?