Oven taking too long to heat up

Hi everyone. This is my first time posting to this forum, so I apologize if I forget any information.

This issues just started yesterday. Yesterday it took the oven over an hour to reach 400 degrees. Today, it reached 154 degrees and stayed there for 15 minutes before I became frustrated with it and shut it off.

Thinking that there might be a clog somewhere, I just turned it onto the "clean" mode. All burners (top and bottom) light, however it seems that the bottom flames disappeared after a few minute of heating.

I’m not sure what’s wrong with my oven. Does anyone have any suggestions?

Sorry, I just found the model number: 317B6641P001

— Begin quote from KrisKishere;227689

Sorry, I just found the model number: 317B6641P001

— End quote

The model number you posted is incorrect. It should start with "JGB". Look for the name plate behind the bottom drawer.

Gene.