Thank you, We will try working on this again in the morning when we have daylight on our side and a bit more rested after a very long travel day today. Is the kitchen/tv slide a hydraulic slide or an electric slide ?
On our 2024 310 RL the kitchen and living/dining slides are hydraulic operated. You should hear a loud pump sound when operating either. If you don’t hear the pump activate when trying to extend the kitchen, then you would need to chance a electrical circuit issue.
However, you mentioned that the slide was out a few inches upon arrival. In my mind, this would support a leak in the hydraulic circuit or a by passing hydraulic cylinder or control valve.
As a work around, you might be able to turn the drive mechanism that connects the two slide arms manually with an adjustable wrench to slowly work the slide out.