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Product description 55A RV Converter Board
Replacement converter section for selected WF-8955 and WF-8900 series RV power centers. Provides 55A DC output from 105–130VAC, 60Hz input and supports compatible lead-acid, AGM and lithium battery systems. Auto-detect charging and an operator’s manual are included.
Check Model Before Ordering
Before ordering, compare the original RV converter’s exact model number, wire colors, connector layout and mounting-hole pattern. Designed for selected WF-8955 and WF-8900 series applications, this replacement converter board assembly is not a complete power center. Compatibility depends on the existing setup.
Auto-Detect Charging
The auto-detect control board is designed to identify a compatible battery chemistry and select a suitable charging profile for lead-acid, AGM or lithium RV battery systems. This helps reduce manual mode selection while supporting everyday battery charging and 12V power needs. Battery condition, system load and installation may affect charging behavior.
Cooling & Protection Design
A load-controlled fan adjusts with converter demand, while the finned aluminum heat sink helps transfer heat away from key components. The design also includes over-temperature protection, electronic current limiting, short-circuit protection and reverse-battery fuse protection. Protection functions are intended to support operation when the unit is installed and connected correctly.
Converter Section Only
Replace the failed converter section without purchasing a complete power center. This product is the converter board assembly only; the enclosure, AC breaker panel, DC fuse board, battery and other power-center components are not included.
See Details Before Ordering
Review the actual product layout before purchase: load-controlled fan, auto-detect control board, aluminum heat sink, copper-wound components, color-coded leads and mounting base. Compare these details with the original converter to confirm the replacement matches your setup.
Fan & Mounting Base
Review the cooling fan, bracket position and pre-drilled metal base. Compare the mounting pattern and overall structure before purchase.
Pre-Wired Leads
Color-coded leads come attached to the assembly. Compare wire colors, terminal ends and routing with your original unit before installation.
Control Board Detail
Close-up views show the built-in control board, connectors and charging circuitry. Compare the board layout and wire routing before ordering.
Heat Sink & Copper Coil
The aluminum heat sink and copper coil help manage heat during normal operation. Detailed views show the actual component layout.
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Will this converter board fit my RV power center?
Before ordering, compare the exact model number, wire colors, connector layout and mounting-hole pattern with your original converter. It is designed for selected WF-8955 and WF-8900 series applications, but fit depends on your existing setup.
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Which battery types are compatible with this converter?
The auto-detect control board is designed for compatible lead-acid, AGM and lithium RV battery systems. It identifies the connected battery chemistry and selects a suitable charging profile. Results may vary with battery condition and system load.
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Is this a complete RV power center or only a replacement board?
This package includes one converter board assembly and one operator’s manual. It is not a complete power center or inverter. The enclosure, AC breaker panel, DC fuse board, battery, wiring hardware and other power-center components are not included.
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What should I check before installing the converter board?
Disconnect shore power, AC input and battery power before service. Match every wire to the original layout and confirm mounting holes align. Because installation involves AC and DC wiring, use a qualified technician when required for the RV system.
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How does the cooling fan operate during normal use?
The load-controlled cooling fan changes speed with converter demand to help move heat from internal parts. Fan speed and sound may vary with load and temperature. The unit also includes over-temperature, current-limiting and short-circuit protection.
- Fitment Reference: Designed for WF-8955-AD-MBA, WF-8955-MBA, WF-8955PEC, WF-8955AN, WF-8900 and WF-8900-AD converters, plus Parallax 7145/7155 power centers. Compare model, connector layout and mounting points before ordering.
- Auto-Detect Upgrade: Unlike standard single-profile converter boards, this AD-MBA board checks battery chemistry and selects a charging profile for compatible lead-acid, AGM and lithium RV battery systems.
- Smart Charge Profiles: Lead-acid and AGM systems use 14.4V bulk, 13.6V absorption and 13.2V float charging. Lithium systems use 14.6V bulk and 13.6V absorption for compatible RV lithium batteries.
- 55A RV Power Repair: 105-130VAC, 60Hz input, 950W rated power and 55A DC output help restore 12V power for RV lights, fans, water pumps, onboard electronics and battery charging without replacing the full power center.
- Cooling, Protection and Install Note: Load-controlled fan adjusts with demand. Includes over-temp, current limiting, short-circuit and reverse battery fuse protection. Board assembly only, not an inverter. Disconnect power before installation.
