Most of the electric flame effects I've seen are done by a rotating drum. I have a similar rotating motor on my Christmas tree. The motor that causes it to rotate has a capacitor to provide the oomph (technical term) to get it spinning. If I click it off and on it will sometimes startup in the opposite direction, I believe because of the power surge/drop from rapidly turning it off and on effects the phase of the circuit causing it to essentially be 180 degrees out of phase and spin backward. At least that's all I could come up with when I dissembled the thing to figure it out. If you have a low power condition and its an AC Power rotating motor that spins the flame effect it might be as simple as turning it off for 10 seconds and then turning it back on without a lot of other draw.
Rig: '16 XLR Hyper-Lite 29 HFS > 2014 Nissan Titan Pro4X 5.6L
Toys: '08 HD Screaming Nemo Ultra > '07 HD Dyna Street Dori
Family: DH - JC, DW - Malinda, DD - Sparky the Wonder Chug (Chihuahua & Pug)
Days Camped: 2016 - 22 (+13 reserved); 2015 - 27; 2014 - 16