Test Mode - With grill OFF, press and hold the Probe Temp and Temp Down buttons to enter
the button test Mode until all digital display and LEDs turn on . Press ProbeTemp button it
displays "S-1", press I/O button it displays "S-2", press Temp Down button it displays "S-3",
press Temp Up button it displays "S-4", Press Temp Display button it display "S-5", Each
additional press of the Probe Temp button will advance you through below next function test.
Return to OFF state