Aerator question

[mrstevewayne]

My 1988 Stratus bass boat has outdated arbiter toggle switches. The aerator pumps are Johnson 12V and I have #2 of them. I would like to upgrade the switch (see pictures) because one of them pumps do not work. My switch is auto, and manual settings. Only one pump works on manual and the other pump does not work at all(no power to it) pumps look new. I think it is my rusty old switch. As you can see it has a min, max aerator knob also.
I have been looking for a Johnson home page but cannot seem to locate one. Can anyone advise me on a replacement switch (part number) or where I may look online to find one. Hopefully they will have a land line phone in Tec support to explain so I can explain what I want to replace.

 

[dingbat]

Nothing fancy or special. Typical 3 position on - off-on toggle switch

Your problem is most likely a bad timer in the “auto” circuit

 

[kmckoy]

My 1988 Stratus bass boat has outdated arbiter toggle switches. The aerator pumps are Johnson 12V and I have #2 of them. I would like to upgrade the switch (see pictures) because one of them pumps do not work. My switch is auto, and manual settings. Only one pump works on manual and the other pump does not work at all(no power to it) pumps look new. I think it is my rusty old switch. As you can see it has a min, max aerator knob also.
I have been looking for a Johnson home page but cannot seem to locate one. Can anyone advise me on a replacement switch (part number) or where I may look online to find one. Hopefully they will have a land line phone in Tec support to explain so I can explain what I want to replace.

You can find those switches at Ace Hardware, I have bought them for work boats from there. Auto parts stores have them as well NAPA, Carquest, etc. just look for a 3 pronged switch, they have a little wiring diagram with them.
As far as the min/max switch, I would eliminate that and just run in as either auto/off/on. I move fish as part of my job and the aerator will not put too much oxygen into the water, so let it run full blast.

 

[mike_i]

How many terminals are on the back of the switch? I'm guessing you need a DPDT, double pole double throw switch. Look them up online and make sure the switch is rated for at least 12vdc. Disregard the AC rating.