Originally Posted by xtanker
Sundance .. tks, hope this helps
It sure does! I'd remove that switch box and check the back of the switch. It's possible the 'down' side of the switch has a problem such as a broken wire or a loose connection. I think what you will find back there is three wires, a common wire in the middle of the switch and the up/down legs on the other contacts.
You can isolate the up side wire and replace the down side wire with it to see if the gear goes down. Or, you can simply jump the down side to see if the gear goes down.
You can go ahead and do a continuity check on the switch just for justification. You can also find a heavy duty switch and connect the common and down side to it and see if the gear goes down.
My guess is the contacts in the switch have taken a hike and a new switch is in order.
You might find a replacement switch with the appropriate markings or you can just replace the switch and label the function as needed.
Fortunately for you it's a good ole mechanical switch that can be easily replaced for just a few bucks. Just make sure the replacement switch is heavy duty because of the load it must handle.
Looky here http://www.ebay.com/itm/New-RV-WIRIN...hRFoXi&vxp=mtr
That's just one of many listed but you get the idea.