There is a power center somewhere in the camper, probably near the floor. Many times it is mounted under the fridge, as it fits well there.
On 1 side will be the AC circuit breakers, on the other will be the DC fuses. The air conditioner should be on a dedicated circuit, so if both the air conditioner and drill quite working at the same time, that is an indication that either the breaker to the house receptacle tripped, or the main breaker at the power center tripped.
Chap , DW Joy, and Fur Baby Sango
2006 Ford F150 Super Cab 4x4
2008 Surveyor 263