Harimaron! Its First Errand!! : Season 18 Episode 40

Our heroes have stopped at a busy Pokémon Center to get out of the rain when the power goes out! Clemont soon discovers that a leak in the roof has caused a short circuit, and recruits Luxray, Pikachu, and Dedenne to serve as a temporary source of electricity while he fixes it. Ash climbs up to repair the leak, and Serena and Bonnie offer to help Nurse Joy take care of the Pokémon. Clemont needs a replacement fuse, but he can't leave the still-sparking fuse box unattended, and everyone else is still hard at work. So he sends Chespin and Bunnelby into town with a note ...