JennAir JGRP536Wp01 seems so far to have a mind of its own. Oven preheats fine but when it switches to bake or conv bake it won't maintain set temp. Replaced temp sensor with no help. I checked the oven temp against a DMM and found oven typically runs 30-40 degrees less than set temp. Sometimes has a difference great than 40 degrees. It usually always relights on the first spark from the igniter but it seems it's more that the range doesn't know what the temp is at cause sometimes it won't relight and the temp will drop really low without a relight. I'm monitoring operation to compare re-lights vs DMM temp findings. Think kicking the calibration setting up to 20 may help??