WP Convection Microwave settings adjustment/calibration?

[mattl]

I have an WP OTR  Microwave/convection oven I mostly like.  Have an issue with the potato setting/option.  It is in no way correct.  I hadn't made a baked potato in a while and was doing a steak last night and popped a potato in.  Medium sized potato the oven sensed it then displayed  9 minutes!  Might have been longer that just when I noticed, potato was well done at that point.

 

I had a combo OTR oven from GE that I gave to a cousin and that oven turned out the best baked potatoes I've ever had from a microwave.  Just wondering if anyone knows if there is a way to recalibrate the sensor in the oven, or just forget it and guess at the time.

 

[DADoES]

 
My GE OTRs both had/have Less and More options for the sensor functions, selected on-the-fly at each run.  You might check if your WP has such, although that probably won't be enough difference to fix the issue.

Maybe one potato isn't enough food mass for the sensor to function properly?