johnson multiple shower sump

[LloydT]

Hi. Recently purchased Albin 28 Flush Deck which has the sump mentioned above;
however, I can't seem to figure out why this Johnson shower sump doesn't work. It's not an old unit.
I believe it has an in line fuse (which I can't find).
I took the unit out of the boat and it worked when connected to a 12 volt battery, leading me to believe it must be the fuse.
Any ideas where this fuse might be located in the boat..not much room to see anything.
I've had a look at the electrical panel..too many wires
Is there a panel switch which activates this unit?
Thanks in advance. Any suggestions appreciated.
Lloyd

[Russell]

On my 2005 model there is a switch on the DC panel labeled "shower" that must be turned on. It sends power to the float switch in the shower sump so the pump does not come on until the water lifts the float. You can remove the plastic lid and lift the switch by hand to see if everything is working properly. I had to replace the float switch this year because it would never shut off.

[JBrooks]

I attached the picture of my AC and DC panel. Should be a switch labeled "Shower" that you turn on.