WON'T START WITH COVER ON, HOSES ARE WORKING, IGNITER IS WORKING, FAN AND MOTOR ARE WORKING. WHEN I TAKE THE COVER OFF, IT WORKS FINE. IS THERE A PRESSURE SENSOR OR I'M MISSING SOMETHING? sounds like running rich possible air mixture wrong or burner tube clogged

Heating & Cooling - All-Pro - Kerosene Garage Shop Heaters - All Pro PK115T Forced Air...