Best Circuit Board Heater Replacement Boards for RV Water Heaters

Finding the right circuit board for an RV water heater ensures reliable ignition, temperature control, and safe operation. The following table summarizes the five top replacement boards and kits chosen for broad compatibility with Atwood, Dometic, and Suburban systems.

Product Brand Key Feature
91365 RV Water Heater Control Circuit Board Kit YEHERIT OEM compatibility list and 12V DC control
Lrichy 3-in-1 Value RV Water Heater Replacement Kit Lrichy Includes circuit board, thermal cut-off thermostat, and spark probe
Atwood 91365 Circuit Board Kit Atwood Factory replacement for common Atwood/Dometic models
Lrichy Upgraded 91365 Ignition Control Board Lrichy Intelligent control, thorough testing, broad OE compatibility
Fexhull 91365 RV Water Heater Control Circuit Board Fexhull OEM-standard replacement with fuse combo kit option

YEHERIT 91365 RV Water Heater Control Circuit Board Kit

YEHERIT 91365 RV Water Heater Control Circuit Board Kit

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This replacement board is listed as compatible with a wide set of Atwood and Dometic models, including G6A, GC6AA, GCH6A, GH6, and various G10/GC10 series. The product description emphasizes OEM-standard manufacturing to meet or exceed original specifications for durability and efficiency.

Key compatibility details are provided for many model variants and reference part numbers (91365, 91346, 93305, 93851). The listing urges checking the applicable model before purchase to ensure fit. The board operates at 12V DC and is intended to replace water heater control boards used for gas/electric RV units.

Lrichy 3 In 1 Value RV Water Heater Replacement Kit

Lrichy 3 in 1 Value RV Water Heater Replacement Kit

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This integrated kit includes the 91365 circuit board, a 91447 thermal cut-off & thermostat, and a 93868 spark probe igniter electrode. The combined approach aims to provide a one-stop repair solution for ignition and safety component failures.

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The listing highlights wide compatibility across Atwood/Dometic model series (GH6, GCH6, G6A, GC6A, GC10A, GCH10A, XT series) and reports that components are made of high-quality materials with durability testing. The kit may be useful when multiple parts fail or as a preventative replacement package.

Atwood 91365 Circuit Board Kit For Water Heaters

Atwood 91365 Circuit Board Kit

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This listing is the brand (Atwood) replacement listed to work with gas/electric 12 VDC water heaters and replaces Atwood part 93851. The description notes it is compatible with several water heater models including GCH6A-10E and GC6AA-10E.

The product is described as a combo board controlling both LP ignition and the electric element. The listing clarifies that the edge pin connector (Atwood part #93309) is not included, so buyers should verify connector needs prior to installation.

Lrichy Upgraded 91365 Ignition Control Circuit Board

Lrichy 91365 Ignition Control Circuit Board

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This upgraded 91365 control board listing emphasizes intelligent controls for ignition and temperature regulation. It claims to monitor the heating process in real time and to provide feedback for efficient operation.

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Compatibility is broad across Atwood/Dometic model families and OE numbers (91226, 91346, 91365, 93305, 93851). The product description indicates 100% testing before shipment and materials designed to meet original equipment standards for reliable performance.

Fexhull 91365 RV Water Heater Control Circuit Board

Fexhull 91365 RV Water Heater Control Circuit Board

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Fexhull lists this board as a direct fit for Atwood/Dometic part numbers 93305, 91365, 91346, and 93851. The item is described as the newest model that replaces the Atwood 93851 and conforms to OEM standards.

Features include compatibility with GCH6A-10E, GC6AA-10E, GC10A-4E, and related water heater models. The product note specifies it does not include the Atwood edge pin connector #93309. The listing also references a fuse combo kit option to address additional protection needs.

Buying Guide For Circuit Board Heaters (RV Water Heater Control Boards)

Choosing the correct replacement circuit board for an RV water heater involves matching electrical, mechanical, and functional requirements. This guide covers the critical purchase considerations to evaluate multiple perspectives.

Compatibility And Model Matching

  • Model Numbers: Verify the water heater model (G6A, GCH6A, GC10A, etc.) and cross-check part numbers like 91365, 91346, 93305, 93851 before buying.
  • OE Numbers vs Aftermarket: OEM-branded boards often list direct replacement part numbers; aftermarket boards list compatibility ranges. Confirm connector and mounting alignment.

Functionality And Features

  • Ignition Control: Boards that manage LP ignition should be compatible with your ignition electrode and gas valve system.
  • Electric Element Control: If the heater is combo gas/electric, confirm the board controls the electric heating element (12V DC control referenced by many listings).
  • Safety Switches: Check whether the board interfaces with thermal cutoffs, thermostats, and flame detection devices. Some kits include thermal cutoffs or probe electrodes.

Included Components And Kits

  • Board Only vs Kits: Boards sold alone may require separate purchase of the edge pin connector (Atwood #93309) or mounting hardware. Kits may include thermal cutoffs and igniters.
  • Convenience: A multi-part kit (circuit board + thermal cutoff + spark probe) simplifies repair when multiple components show wear or failure.

Quality, Testing, And Manufacturing Standards

  • OEM Standard Manufacturing: Listings that claim OEM standards indicate adherence to original specifications for fit and tolerances.
  • Tested Units: Products that describe 100% testing before shipment reduce the risk of receiving a defective board.
  • Material Quality: Durable components and corrosion-resistance are valuable in the RV environment.

Electrical Requirements And Connectors

  • Voltage: Most RV water heater control boards operate at 12V DC. Confirm system voltage prior to installation.
  • Connectors: Confirm whether the listing includes necessary edge-pin connectors or headers; missing connectors require additional parts and may affect fit.
  • Wiring Diagrams: If available, review wiring diagrams to ensure terminal function aligns with your heater’s harness.

Safety And Regulatory Considerations

  • Thermal Cutoffs: Replacing or testing the thermal cutoff or thermostat is important when addressing overheating or no-ignition issues.
  • Flame Detection: Ensure the board supports your furnace’s flame sensor/probe and gas valve control sequence for safe operation.
  • Installation Best Practices: Disconnect power and gas before servicing. If unsure, consult a qualified RV technician to confirm safe installation.

Durability And Environmental Suitability

  • Corrosion Resistance: Boards used in humid or marine-adjacent environments should resist corrosion and moisture.
  • Thermal Performance: Component ratings and heat tolerance matter in confined heater compartments.

Serviceability And Support

  • Return Policy And Warranty: Check vendor return policies and any warranty coverage for replacements or DOA issues.
  • Technical Documentation: Installation guides and part cross-reference charts simplify diagnosis and reduce installation time.
  • Spare Parts Availability: Boards that share OE numbers with common models may simplify future sourcing.

Comparison Perspectives

  • Single-Component Replacement: Choose a board-only option if you are confident other components (thermostat, probe, connectors) are functional.
  • Comprehensive Repair Kit: Opt for an integrated kit when multiple parts age together or when traveling frequently; it reduces downtime and multiple orders.
  • OEM Brand vs Aftermarket: OEM-branded parts match factory specifications directly; reputable aftermarket parts can offer similar performance and broader compatibility but require attention to fit and included connectors.

Installation And Troubleshooting Tips

  • Confirm Fitment: Physically compare board mounting points and connector arrangement before final installation.
  • Test Before Sealing: After wiring, test ignition cycles and element control while access remains open to verify function.
  • Check Related Components: A failed board can be triggered by bad probes, burned connectors, or failed thermal cutoffs. Inspect and replace damaged part(s) as needed.

Use the above checklist to weigh compatibility, included components, testing, and long-term reliability when selecting a replacement circuit board for your RV water heater. Proper matching of model numbers, connectors, and safety features ensures a safe and functional repair.

Tips for Getting the Best HVAC Prices

  1. Prioritize Quality Over Cost
    The most critical factor in any HVAC project is the quality of the installation. Don’t compromise on contractor expertise just to save money.
  2. Check for Rebates
    Always research current rebates and incentives — they can significantly reduce your overall cost.
  3. Compare Multiple Quotes
    Request at least three estimates before making your choice. You can click here to get three free quotes from local professionals. These quotes include available rebates and tax credits and automatically exclude unqualified contractors.
  4. Negotiate Smartly
    Once you've chosen a contractor, use the proven strategies from our guide — How Homeowners Can Negotiate with HVAC Dealers — to get the best possible final price.

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