2005 Fleetwood discovery 4 slides

Without more info, your post does not give accurate info. Are you positive the slide in question is electric? Is it possible it is a Cable driven(accuslide). Maybe Hydraulic? Bedslides, the motor is usually under the bed base by the outside wall and very difficult to get to. But your post seems to indicate it is NOT the Bedslide? Probably the wardrobe slide? If cable driven, you will see the cables on the outside of the slide wall extended or retracted. Can you post a pic of the bedroom and the slide? Doug

Is this your system?

https://www.lci1.com/assets/content/support/manuals/pg_82_S0010_01.pdf