I favor Progressive Dynamics for multiple reasons including I really REALLY like the programmers on the charge wizard.. BUT that said there are many I would consider just or nearly as good.
To the fuse question: Yes. usually on one that size 3 30 amp fuses. IF any one of them is blown the other two are as well. UNPLUG.. Replace all three. then re-connect.. They should be replaceable without opening the unit's case. (But may be hidden from easy view Mine are on my PD 9180+wizard)
However odds they are blown ... Low. very low.