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CHECKING CONVERTER OUTPUT VOLTAGE
Before checking the WF-9800-AD Series Converter-Charger output voltage, disconnect the bat
-
tery cables at the battery. Make sure the converter is plugged into an AC source (105-130 Volts).
Check the converter output voltage at the battery with a voltmeter. Place the meter probes on
the disconnected battery cables; place the Positive (red) meter probe on the + Positive battery
wire and place the Negative (black) meter probe on the -Negative wire on the battery cable
(Figure 5).
Be sure you have good connections at the cables. If the voltage reads 13.6 - 14.4V, the converter
is functioning properly.
If the converter output voltage at the battery reads 0.0 VDC, or if the battery is not charging,
check for an open inline fuse in the battery wire circuit. One may have been installed by the RV
manufacturer. Also check for loose wiring connections.
CHECKING FOR REVERSE BATTERY HOOKUP (REVERSE POLARITY FUSES)
If there is no DC output coming from the WF-9800-AD Series Converter-Charger output lugs, rst
check the reverse polarity fuses on the rear panel. Then, visually inspect the fuses for any breaks
in the fuse element. If no breaks are found, use a continuity tester to check for continuity. If the
reverse polarity fuses are blown, it means the RV battery was accidentally connected in reverse,
either at the battery or at the converter. Investigate the connections and reconnect the cables
properly. Replace the fuse with the same type and amperage rating as the original.
IMPORTANT: These fuses protect the converter from damage if the RV battery is accidentally
connected in reverse. A reversed battery connection, even if for only a second, will cause these
fuses to blow.
If the above checks have been made but the converter output still reads 0.0 VDC, the converter is
not functioning properly.
Figure 5
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