Ask your dealer for the correct probe.Should I ever see the flame shield in front of the cat glowing orange? The shield itself was glowing (as well as the cat). I had it ripping full throttle for a bit when it happened. Stove top hit 700F.
On another note I'm still not sure what the correct cat probe length is for the Sirocco with the convection deck. My cat probe has been useless since I added the deck (raises it about 1-1/2"-2" out of stove). I can engage halfway through the inactive range.
Yes, the shield will glow on occasion, no harm.
	
	
300 df when cat into the active zone and there is some good coals  and start loading with big chunks from the back to the front. just right at front i drop some small stuff and it catch fire almost instantly causing the cat to light up quick and the probe goes almost all the way like in that picture in minutes when stove top temp still just little over 300 df. minutes later it start climbing and in no time is at 600 to 650 df. 