Greetings,
My sister has a relatively new (18 months old) GE Gas Range (Model# PCGS930SEL2SS) and back in October it started exhibiting this issue where the oven would come on, up to temp and then would shutdown / not stay on and keep the oven at temp. Because the oven was past the 1 year warranty, she ended up dealing with a local appliance repair company and 3 visits later, and more than $800 out of her own pocket things are no further ahead. Reaching out to both the company she purchased from, and to GE have so far, not resulted in any action. Searching both this forum and via google search have led to a possible lead on this issue... the bulletin referenced below seems like it is similar to what she is seeing, but I do not have access to the full details of this bulletin to further investigate.
https://appliantology.org/topic/69585-new-appliance-service-manual-added-ge-cgs986-pgs930-gas-range-training-bulletin-shutting-down-at-250f/
Oct 9, 2018 — GE CGS986 PGS930 Gas Range Training Bulletin - Shutting down at 250F View File PUB TB16-18 Submitter Samurai Appliance Repair Man ...
Additionally, I can say that the 3 service calls thus far have resulted in replacement of the components listed below, all which have not helped
WS01L16300 - glass & touch board
WS01F08639 - machine board
WS01F07435 - brake HSI
WS01F09B94 - blower
WS01F06621 - board sensing
Thanks in advance for any input on this!