Oven Will Not Stay Lit (Again)

I know this topic has been gone over several times before in the past, but I sure could use some additional help.

My oven will not relight after about 30 minutes of operation. It lights, but goes out after a few seconds. I found through past posts that if the burner has four lighting holes, it should be replaced with the 8-hole burner. If it already has an 8-hole, drilling out the holes to the next size drill diameter will sometimes solve the problem.

I ordered a new 8-hole burner from AppliancePartsPros, but was hesitant to use it as it was identical to my old one. I drilled out the lighting holes on my old one and it worked for a few times but is back to not staying lit.

I don’t see how replacing the burner would solve the problem since it appears to be identical to the old one. In all the posts I’ve read, I haven’t seen an explanation as to what could be causing these problems. It seems to be flame sense issue. I thought about cleaning the spark ignitor or changing it too.

BTW, shouldn’t this range be displaying an error code?

So, now what are my options? I want to call PartsPros and ask if I install the burner, will I still be able to return it if it doesn’t solve this.

Thanks for any help you can offer!

Larry