This issue has been addressed in the Spectrum 08.01.00.H20 HotFix. The following is the Release Note reference:
'Unresolved fault' alarm is generated incorrectly for models in maintenance.
No more incorrect 'unresolved fault' alarms will be generated for models in maintenance.
SPECTRUM Unresolved Fault Detected alarm asserted on devices in Maintenance Mode
Unresolved Fault Detected
(Legacy KB ID CNC TS32368 )