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Thread: Battery not charging.
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06-14-2019, 07:43 PM #11
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The 2 fuses protect the converter if the battery cable connections get connected backwards/reverse polarity, they blow immediately then.
The converter has electronic overload and short circuit protection built into its electronics, a "crowbar circuit" is what was used in the old days.
It does sound like a bad converter.
This is from another WFCO model, but I think they all operate the same.
If the voltage reads 13.6 VDC (+/- 0.2) with no load, 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.
Reverse-Polarity Fuses
If there is no DC output coming from the WF-8500 Series Power Center converter section, first check the reverse-polarity fuses on the fuse board. 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 in the event that the RV battery is accidentally connected in reverse. A reversed battery connection, even if for only a second, will cause these fuses to blow.
Electronic Current Limiting
In the event that the output current exceeds the maximum rating for the WF-8500 Series converter the output current will remain constant but the output voltage will begin to drop.
If this occurs, the unit will recover once loads are reduced.
Short-Circuit Protection
Should a short circuit occur in the RV, the WF-8500 Series converter will drop the voltage output to zero volts. If the short-circuit condition is removed and no other fault conditions
are detected, the converter will resume normal operation.Last edited by gbkims; 06-15-2019 at 09:48 AM.
- Gene
Kim & Gene
2015 Reflection 317RST
2017 Ram 3500 CC LB 4x2 6.7 CTD AISIN 3.73 DRW Auto Level Rear Air, BD3, Prodigy P3, Aux Tank
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06-14-2019, 07:48 PM #12
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06-14-2019, 08:19 PM #13
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Maybe a converter circuit component has gone out of tolerance, or a battery going south is dragging it down.
If you disconnect from the converter from the battery and still only outputs 12.4V, then it's bad.
12.4V isn't enough voltage to fully charge a battery. Most of the time you'd see 13.6V out of the converter for several hours before it'd go to storage mode of 13.2V.- Gene
Kim & Gene
2015 Reflection 317RST
2017 Ram 3500 CC LB 4x2 6.7 CTD AISIN 3.73 DRW Auto Level Rear Air, BD3, Prodigy P3, Aux Tank
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06-15-2019, 06:01 AM #14
Do yourself a favor and ditch the WFCO converter. Get yourself a Progressive Dynamics. Your batteries will love you.
2018 Reflection 315RLTS
2023 F350 Lariat 6.7L/CC/LB/FX4
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06-15-2019, 02:03 PM #15
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What changed for the new GD...
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