I removed two retainer screws which released the outside panel. Next I removed 2 screws which hold the middle glass pane from one of its retainer brackets. The was another panel with 4 screws to remove before reaching the final glass inner assembly. Once that panel was reoved with the broken glass it was time to put the repacement glass assembly back together.
So, the F9 error indicates a electrical power issue. First I pulled the oven out and verified I had 240 volts at my outlet.
Then I removed the fire panel over the terminal block and the issue was apparent. The nuts on the terminal block were corroded. This had cause the resistance in the connection to raise and burn up the wire to my oven plug at the terminal block.
I removed the whole back panel and everything else seemed OK visually.
1. I go new connectors for the oven plug, stripped the wires, and crimped on the new connectors.
2. The terminal block DOES NOT come with the nuts to connect the wire to the terminal block. Mine were so corroded they had to be replaced. So I went and purchased the correct ones and installed the terminal block and reconnected all the wires.
3. I applied some dielectric grease to the connections through out the process of reinstalling to prevent it from happening in the future.