How do you prime the RUUD furnace when it runs out of fuel?

THE PHRASING OF THE QUESTION IMPLIES OIL IS THE FUEL USED. IF OIL, ON THE SIDE OF THE PUMP IS A BLEEDER. PUT A SHORT HOSE ON THE BLEEDER NIPPLE AND CRACK THE FITTING ABOUT 1/4 TURN CCW. PUT THE BURNER INTO A CALL FOR HEAT TO TURN THE BURNER MOTOR (WHICH DRIVES THE PUMP), ON. WITH THE HOSE IN A SMALL CAN (CUT THE TOP OFF A COKE CAN), RECYCLE THE BURNER TILL ONLY OIL COMES OUT, NO AIR BUBBLES. THE BURNER CONTROLLER WILL ONLY ALLOW THE UNIT TO OPERATE FOR SO LONG BEFORE THE SAFETY TRIPS. LET IT COOL (1-2 MIN) BETWEEN ATTEMPTS. PUSH THE RED BUTTON TO RECYCLE THE BURNER CONTROL. CLOSE THE BLEEDER WHEN DONE AND CHECK FOR LEAKS. LC