JOHNSON PUMP Kontrollschalter für Bilgenpumpen

Thank you for your question. To assist you better, we need to know which switch model you are using—whether it’s our 2-way or 3-way switch—and which specific bilge pump switch you have. The wiring can vary depending on the switch type: • The Ultima Switch is fully electronic. • The electromagnetic switch is a hybrid sensor-electronic version. • The classic AS888 float switch is fully manual. We recommend reviewing the wiring diagrams for all versions in our manuals, which you can find here: Bilge Pump Control Panel | SPX FLOW Both panel switches include an indicator light. If the light is not working, it could be due to a faulty diode or incorrect wiring. Please ensure that the switch, bilge pump control panel, and any other switches or fuses are installed on the positive (+) line between the battery’s positive terminal and the pump’s positive (brown) wire. If you provide more details about your setup, we’ll be happy to help further.