On a Central Manager (CMC) the services dedicated to a sensor are not running. They are disabled. When running systemctl list-unit-files there will be services listed as disabled. These should only be services which are not used on a CMC and are expected to be marked as failed.
This is a sample of services which are expected to be marked as disabled on a CMC:
captured-script.service disabled
clamav-clamonacc.service disabled
clamav-freshclam.service disabled
[email protected] disabled
clamonacc.service disabled
console-getty.service disabled
console-shell.service disabled
[email protected] static
containerd.service disabled
cpupower.service disabled