One board that covers an impressive range of RV appliances. The Dinosaur UIB S replaces failed ignitor boards in Dometic and Norcold refrigerators, Coleman, Duo-Therm, Hydro-Flame, and Suburban furnaces, and Atwood, Mor-Flo, and Suburban water heaters -- giving you a single solution to carry as a spare or install as a direct upgrade over a worn-out OEM board.
A failed ignitor board means no heat, no cooling, and no hot water -- three problems that can end a trip fast. The UIB S gives you built-in diagnostics so you can identify the fault instantly rather than pulling components one by one. Its onboard LED tells you at a glance whether the board has power and whether the gas valve is receiving the signal it needs.
Dinosaur Electronics has been the go-to aftermarket ignitor board brand for the RV service industry for decades. The UIB S is their compact form-factor version, sized at 3.25 inches by 4.25 inches to fit tight appliance compartments while still delivering the same micro-controlled ignition logic as their full-size units.
Green LED confirms power to the board. Red LED confirms signal to the gas valve. Pinpoint faults without a multimeter.
Onboard fuse guards the circuit board against short-circuit damage. Surge protection adds a layer of defense against voltage spikes common in RV 12V systems.
Jumper enables instant-fire operation for water heaters and refrigerators that require it, and can be removed for applications that do not.
Microprocessor-based control logic delivers precise ignition timing and retry sequencing, improving reliability over older analog board designs.
The UIB S is engineered to function as a drop-in replacement for the standard ignitor boards used across the most common RV appliance brands. If your furnace, refrigerator, or water heater uses a standard ignitor board and runs on 12V DC, this unit is a strong candidate for direct replacement.
The UIB S is a 12V DC-only board. Confirm your appliance operates on 12V DC before installing. For water heater and refrigerator applications, Dinosaur Electronics recommends using a see-through plastic protective cover over the board -- this cover is sold separately and is not included with the UIB S.
Ignitor board failures are one of the most common causes of furnace and water heater lockout in RVs. Because the UIB S covers multiple appliance types, many full-timers and serious travelers keep one in their parts kit rather than carrying brand-specific spares for each appliance. At 0.47 lbs and a compact footprint, it takes up almost no space.