Genuine Tornatech main board assembly, part number ELBTOR0042 — the Main Board R222 built for the IPD+ 0–5 V input configuration. The main board is the central circuit board of the JP-series jockey pump controller, carrying the logic that reads the controller's input signal and commands the pump to start and stop.
Symptoms of a failed main board can include a controller that powers up but never calls the pump, erratic cycling, or settings that no longer respond. Replacing the board restores factory operation without replacing the whole controller — confirm your unit takes the R222 / IPD+ 0–5 V input version before ordering.
Fits Tornatech JP1 and JP3 jockey pump controllers specified for this board revision. Veteran-owned Cybertronic Controls stocks it in Hammond, Louisiana — call 985-351-5681 and we will match the board to your controller before it ships.