When using the grill there is no temperature adjustment.
The top number on the switch is 4 – It only comes on when the dial is past 3 and off below 3 – Not able to use a warm setting.
Advice gained on-line and confirmed by parts suppliers recommended replacing the top oven thermostat – no change.
Next advice to replace the grill switch – no change
So both top oven and grill switches incorporating top oven thermostat are new.