Description
Universal Ignitor Board UIB64 for Atwood RV Water Heaters
The Dinosaur Electronics UIB64 Universal Ignitor Board is a premium aftermarket replacement control board designed primarily for Atwood / Dometic gas and gas/electric RV water heaters. It replaces several common Atwood ignition-control boards and can be configured for multiple connector styles, making it one of the more versatile replacement boards available for legacy Atwood water heaters.
The UIB64 is especially well suited for later Atwood gas/electric DSI water heaters that use either 4-pin + 6-pin connectors or a single 10-pin connector. It can also be reconfigured for certain older 6-pin DSI applications. (dinosaurelectronics.com)
Atwood Water Heater Models It Fits
The Dinosaur Electronics UIB64 is a strong replacement option for the following common Atwood water heater models:
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GC6AA-10E – 6 Gallon Gas/Electric DSI
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GCH6A-10E – 6 Gallon Gas/Electric DSI with Heat Exchanger
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GC10A-4E – 10 Gallon Gas/Electric DSI
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GCH10A-4E – 10 Gallon Gas/Electric DSI with Heat Exchanger
These are the primary Atwood water heater applications associated with the later AC/gas control architecture the UIB64 was designed to replace.
The UIB64 may also be configured for select older Atwood DSI water heaters that use the appropriate 6-pin ignition-board connection. Because Atwood used several different control-board configurations over the years, always verify the existing board number and connector style before ordering. (dinosaurelectronics.com)
Common Atwood Applications
The UIB64 is commonly used on later-model Atwood water heaters in the:
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GC6AA Series
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GCH6A Series
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GC10A Series
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GCH10A Series
Fitment depends on the specific model revision and control-board connector configuration.
Replaces Common Atwood Control Boards
The UIB64 is commonly used as a replacement for Atwood / Dometic ignition-control boards including:
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91365
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91226
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Select 93851 applications
Always compare the original board number, connector arrangement, and water heater model before installation.
Configurable for Multiple Connector Styles
One of the biggest advantages of the Dinosaur Electronics UIB64 is its configurable design.
It can be used with:
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4-pin + 6-pin edge connectors
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4-pin + 6-pin header-style connectors
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Single 10-pin connector
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Certain older 6-pin DSI applications when properly configured
This allows one board to replace multiple older Atwood control-board designs.
What the UIB64 Does
The UIB64 controls the propane ignition sequence of the water heater.
When the thermostat calls for heat, the board coordinates:
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Spark ignition
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Gas valve operation
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Flame sensing
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Ignition retries
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Lockout operation
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AC heating relay control on compatible gas/electric models
A failed ignition board can prevent the water heater from lighting even when the burner, gas valve, thermostat, and propane supply are working correctly.
Built-In Diagnostic LEDs
The Dinosaur Electronics UIB64 includes onboard diagnostic LEDs that can make troubleshooting much easier.
The LEDs provide visual indication of functions such as:
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Board power
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Gas valve output
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AC relay operation
This can help determine whether the board is receiving the correct inputs and sending power to the appropriate components.
Built-In Fuse Protection
The UIB64 includes a replaceable 5-amp automotive-style fuse to help protect the board against electrical shorts in the gas-valve and AC-relay circuits.
This additional protection is one of the reasons Dinosaur Electronics boards are commonly chosen as an upgrade over older OEM ignition boards.
Signs & Symptoms of a Failed Ignition Board
A failing Atwood ignition board may cause:
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Water heater will not ignite
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No spark at the burner
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Gas valve does not open
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Burner lights and immediately shuts back off
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Water heater repeatedly attempts ignition and locks out
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Intermittent propane operation
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Electric heating control does not operate properly on compatible gas/electric models
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Water heater works occasionally but fails unpredictably
Before replacing the board, verify the propane supply, 12V power, grounds, thermostat/ECO circuit, ignition electrode, gas valve, and wiring connections.
Estimated Install Time
Approximately 15–30 minutes for most direct replacement installations.
Tools Required
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Phillips screwdriver
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Nut driver or socket set
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Multimeter
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Basic electrical hand tools
Installation Notes
The UIB64 must be configured correctly for the specific appliance and connector style.
Before removing the original board:
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Take a photo of all wiring connections.
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Compare the original connector arrangement to the UIB64 instructions.
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Verify the jumper configuration.
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Confirm the water heater model and original board number.
Incorrect jumper configuration can prevent proper ignition or control operation.
Product Specifications
Manufacturer: Dinosaur Electronics
Part Number: UIB64 / UIB 64
Part Type: Universal Ignition Control Board
Primary Application: Atwood / Dometic RV Water Heaters
Operating Voltage: 12V DC
Connector Compatibility: 4+6 Pin, 10 Pin, and configurable 6 Pin applications
Diagnostic LEDs: Yes
Fuse Protection: 5 Amp Replaceable Fuse
Approximate Size: 3.25" x 4.25"
Warranty: 3 Years
Made in USA: Yes
Why Choose the Dinosaur Electronics UIB64?
The Dinosaur Electronics UIB64 is a strong replacement choice for owners of legacy Atwood RV water heaters because it combines broad compatibility, configurable connections, built-in diagnostics, fuse protection, and a three-year warranty.
It is especially useful for common Atwood models such as the GC6AA-10E, GCH6A-10E, GC10A-4E, and GCH10A-4E, making it a valuable replacement board for both 6-gallon and 10-gallon Atwood gas/electric DSI water heaters.
Important: The UIB64 is highly configurable, but it does not automatically fit every Atwood or Dometic water heater. Verify the complete water heater model number, original control-board number, and connector style before ordering.
