...I believe there's some external circuit breaker or something. Any help? All fuses appear OK. The red cable plugged into the bank looks fine as well.
At this point I would say you need to get out your test light and/or your V.O.M. (meter). Check for voltage either at the switch or at the pump motor. I'd say at the motor makes most sense because if you have voltage there you can then check the pump motor for continuity.
There's an inline fuse running off the battery that I found...and it's fine. Horn works, etc... just the top not working. I know it's probably something simple I'm just not finding.
Do you hear any sound from the pump when you try the switch? If not, then the switch is probably broken. cheers, Ray