For the bilge auto switch to work it should have power to it at all times even if the battery switch is turned off if you have a battery switch. Use the smooth interior hose to connect your pump with discharge.

Wiring Diagram For Float Switch H1 Wiring Diagram
Johnson bilge pump float switch wiring diagram. Mount on your float switch 4. You will need to provide power to the other side of the manual switch 4 battery negative connects to both the float switch black and pump black wires. It is meant to assist each of the common consumer in developing a suitable system. Johnson pump wiring diagram wiring library rule automatic bilge pump wiring diagram. This will allow free flow of water to the float. Ensure the bilge pump is safely mounted on the bilge.
3 backlit bilge rocker switch wiring diagram. The brown wire from the float switch connects to both the brown wire on the bilge pump and the 2nd 12vdc source from manual switch they show. Replacement float switches for johnson pump bilge pumps turn on when bilge water levels reach 4 cm inches of water and off at 34 cm inches. Float switch floats up switch closes pump runs until float switch drops down and switch opens stopping the pump. Learn more about how our awesome backlit switches work here even that one is still pretty straight forward though here are some diagrams that show the single jumper required on the back of the switch. Turn pump off when water level reaches 34 19mm.
The pump ground wire black goes to the battery. Periodically clean any accumulated debris from around the switch or integral switch guard. Verified pump works by applying 12v direct to motor. Ensure they are restrained so they dont fall and get damaged as they intake air 2. Theres also a cool feature of wiring your bilge pump float switch like this. Use brackets to fasten bilge pump or with epoxy so you can attach bolts at the bottom of the bilge that will be the mounting studs.
In auto mode either auto on the auto off man switch or the off on an on off switch whenever the float floats you get a bilge running indicator on the switch. Also verified that there was 12v coming into the plug that connects to float. Bilge auto float switch wiring bilge wire is most likely a brown color wire with a yellow trace on it. Wiring diagram arrives with several easy to adhere to wiring diagram guidelines. Steps for wiring bilge pump with float switch 1. Wiring johnson bilge pump the salty dogs.
I use one of the newer style field sensor switches instead of a traditional float switch to detect the water in the bilge. These guidelines will likely be easy to grasp and apply. Jul 16 i am having trouble wiring a johnson 3 wire electronic float switch to a 3 way switch with manual off and automatic bilge pump operationmay 31 re. One float switch wire goes to the battery and the other goes to the pumps brown wire. Of the three bilge pump switches the only one thats not extremely simple is the backlit automanual bilge pump switch. Using this manual you may be able to find out how each element ought to be linked and the precise actions you need to consider to be able to successfully full a specific job.
This is a very typical diagram for operating a bilge pump both automatically and manually. Here are the ways you can use to wire float switch bilge pump safely. 1pc bilge float switch. Free internet. Discussion directory. 15 amp float switches are made from high impact plastic are fully submersible and have an 18 month.
In the right hand diagram you can see how the backfeed from the float switch might come back up the manual line and. Seems the float is not working as i checked it for continuity but i jumped through the plug that the float connects to and still not working. Troubleshooting bilge pump wiring to find out why bilge pump not working. Turn pump on when water level reaches 2 51mm. In this video i wire a new bilge pump into the green machine.