First.. Where is it. might be easier to dig it out than you think.
Second.. YES you can.. in fact unless it is shorted you might not even need to disconnect.
And finally..... Converters come in two flavors for this part.
ONE is an intergrated part of the power distribution panel THe other is stand alone.
ON Stand alone there will be 1,2 or 3 fuses. usually 30 amp.. they may be blown YOu may need to pull the beast to find 'em but 5.00 for fuses beats 230 for a new converter (Progressive Dynamics 9180 R)
In my case ther fuses were good.
on intergerated the fuse is usually easier to get to (on the fuse panel).