Ashlee Gregory check the relays. This sounds like either a bad relay or a bad connector. those are hard to find since it requires a lot of poking and probing. Of Course there is always the possibility of a bad On/Off switch. Same here. Put a meter on the contacts and wiggle the switch, see if it gains continuity which would indicate it's failing. We would need to know the exact model and the model year to see if we can come up with the schematic and location of the relays