Replace a cracked, missing, or damaged ignitor board cover with this small clear ABS cover from Dinosaur Electronics. It snaps onto Dinosaur universal ignitor boards used in Dometic RV refrigerators and water heaters, shielding the board from moisture and debris while keeping the diagnostic LED fully visible without removing the cover.
Dinosaur Electronics has been making replacement ignitor and control boards for the RV aftermarket for decades. Their universal ignitor boards are a go-to fix for failed Dometic refrigerator and water heater ignition systems -- but the original plastic cover can crack, yellow, or go missing during service. The 39-0420 is the correct small-size replacement cover that snaps onto those boards.
The clear ABS construction is the key advantage over opaque or generic covers: you can watch the diagnostic LED blink codes in real time while the board is fully enclosed and protected. That matters during troubleshooting, when you need to read fault codes without exposing the board to ambient moisture or road dust.
Transparent plastic lets you read diagnostic LED blink codes without opening or removing the cover.
Encloses the ignitor board to guard against condensation, humidity, and road spray common in RV installations.
Designed specifically for Dinosaur Electronics universal ignitor boards used in Dometic refrigerators and water heaters.
Works with boards installed using the Dinosaur Extend-A-Life Kit -- no modifications needed.
Ignitor board covers serve two purposes in an RV environment: they keep moisture off sensitive board components, and they provide a physical barrier against insects and debris that can enter through appliance vents. In LP-fired appliances like Dometic refrigerators and water heaters, even a small amount of condensation on the ignitor board can cause intermittent or failed ignition. Replacing a damaged cover is inexpensive preventive maintenance that protects a much more costly board.
This cover is sized for Dinosaur Electronics universal ignitor boards installed in the following application types:
The cover snaps or clips onto the ignitor board housing using the same mounting points as the original cover. No tools are typically required. Ensure the board and mounting surface are dry before reinstalling the cover. If replacing a cover after board service, inspect the mounting tabs on the board frame for cracks before fitting the new cover.