IIRC the orange/red signal led indicates a fault.
That, as Paul there suggested, requires a trip to a tech if You aren't versed wth electrical safety procedures and diagnosing and repairing wall voltage appliances.
The diagnose and repair prices vary, but usually it's unfortunately not feasible to get Peavey products repaired because of lack of schematics.
Things may have changed in that regard since I last needed 'em though.
In future needs of amp repairs, the amp in question in the thread title will attract the various (un)official factory reps of the said brand to offer their help.
There's quite a few of them on TB, including at least one for Peavey.