Hi I have a travel trailer with a patio attached with electrical outlets. I lose power in the whole unit .I can get if back on by repeadedly flipping the service disconect breaker. But when the power goes off the breaker does not move after flippin it a few times I hear a beep beep and the power is on but goes back off sometime quickly sometime after a little while. This being a travel trailer it has what I believe is 12 v bulbs and regular bulbs through out. There is a breaker box under the bed and one outside the tt and the one that appears t be controlling is in the wash shed a lot of breakers?? What could be happening here.

a lot could be happening here... find yourself a decent electrician with
troubleshooting skills and hire him.