A direct-fit replacement ignition control board engineered for Atwood AC/gas RV water heaters. The 02-3957 supports both 4-position and 6-position edge-style and 10-pin connectors, includes built-in short-circuit protection, and gives you three diagnostic LEDs so you can pinpoint ignition problems fast -- without guesswork.
When an Atwood water heater won't ignite, the control board is one of the first components to suspect. The Dinosaur Electronics 02-3957 is a well-regarded aftermarket replacement designed to restore reliable automatic ignition on Atwood AC/gas combination water heaters. It is a direct upgrade over the factory board, adding diagnostic LEDs and multi-fuse protection that many OEM boards lack.
The board is jumper-configurable, which means it can also serve as a replacement in older RV furnaces, water heaters, and refrigerators that use a standard ignitor board with a 6-position edge or pin-style connector -- making it a versatile board to keep on hand if you service multiple appliances.
Accepts both 4-position and 6-position edge-style connectors and 10-pin connectors -- covering the widest range of Atwood AC/gas water heater harness configurations.
Onboard LEDs display fault codes and ignition status so you can identify the problem quickly without removing the board from the heater.
Two fuses plus an integrated circuit breaker protect the board and connected components from short-circuit damage during installation or operation.
Onboard jumpers allow the 02-3957 to be adapted for use in older furnaces, water heaters, and refrigerators that use a 6-position edge or pin-style ignitor connector.
This board is designed for Atwood water heaters that run on both AC electric element and propane gas ignition -- commonly found in Class A, B, and C motorhomes as well as fifth wheels and travel trailers. If your rig has an Atwood water heater with a 6 or 10-pin ignition harness and the unit is failing to light, sparking erratically, or displaying a lockout condition, the 02-3957 is a proven replacement option.
The three onboard LEDs give real-time feedback during ignition sequences: