If the above checks have been made but the converter output still reads 0.0 VDC, the
converter is not functioning properly. Contact the Arterra Distribution Power PROs at
1 (877) 294-8997.
Should it be determined that the WF-8900MBA Series Main Board Assembly needs to be
replaced, removal of the Main Board Assembly Is a simple process.
Replacing the Converter Section (MBA)
Make sure no AC power is coming into the RV from either the Shore Power cord or an
on-board generator. Remove and set aside the Reverse Polarity Fuses located on the fuse
board to disconnect the converter section from the rest of the RV’s DC power.
Figure 3
7
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