Consequences Pressure inside the Furnace will Increase Drum Level will start fluctuating(Sub-Critical Units) Flame will become Unstable Running I.D. Fan Motor current will increase Possible Causes Electrical System Failure (Fault in the HT Motor/Supply Failure in the Bus/High Winding Temperature) Lube Oil System Failure (Lube Oil Pump Failure/ Lube Oil Pressure Low) Bearing Temperature […]