1. On DCS frame, the soot blowing system is jammed and alarm is given.
2. On DCS frame, the steam pressure and flow of the soot blowing system is low, and the alarm is given.
3. The local soot blower leaks and the noise is abnormal big.
4. The flame on the television becomes dark and flickers, the negative pressure of the boiler turns to positive pressure, and the soot blower completely enters the hearth of the combustion chamber.