The SwitchFanNotOperational_Alert is sent when there is no fan power supply detected and the fan status reads as non-operational. [Node Name: mgwd: callhome.hm.alert.major:alert]: Call home for Health...The SwitchFanNotOperational_Alert is sent when there is no fan power supply detected and the fan status reads as non-operational. [Node Name: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process cshm: SwitchFanNotOperational_Alert[Switch Name(Switch Serial Number)/Fan Module-3]. Corrective Actions: 1) Use the switch CLI to verify that the fan is functioning at the expected speed.