Easy Rest Sofa Won't Retract

I have a 2009 Itasca Cambria with the Easy Rest Sofa that turns into a bed. The switch on the armrest controls the down and up function for the bed. I put it down yesterday and today it won't return up. I can hear the unit trying to operate when I push the down rocker (sounds like a relay working), but is totally silent when pushing the up rocker side of the switch. The unit was on shore power, and everything else works off 12 Volts, including slides, etc. Any suggestions on what might be wrong??

I found the wiring diagram on line (I think - Dwg 09 730C)), and it talks about a recliner switch and relay.

Any help would be appreciated. Also, how do you get access to the motor, relay, and wiring? The sofa is really in the way.