Temperature prob doesn't work on the Silverton 620-doesn't have the grommets?

[dunnagantim]

We have calibrated our temp probe twice now and it doesn't seem to work. Our grill doesn't have the side grommet, but has the 2 bumbers on the lid where we rest the probe.
Any ideas for help? Thanks, Tim Dunnagan

 

[John S.]

I had a silverton, but bought a FireBoard and ran the cables behind the grommet then trusted the temperature rather than the time.. the Treager probe is known to be off, but it is good as a general temp value...