Deviation
1) More Temperature
2) Less Temperature
3) More Flow
4) Less Flow
5) No flow
6) More pressure
7) Less Pressure
8) More Level
9) Less Level
Cause
1) Loss of cooling
2) Loss of heating
3) Line rupture/valve failed open
4) Valve failed closed / Leak
5) Blockage / Leakage
6) Restricted flow
7) Excessive flow out
8) Operator Error
9) Open drain valve