I had a similar problem. Talked to HWH and was going to order a new keypad, I think around 150-200. I was on a trip that took me past their facility so stopped and had them look at it and a slow jack. They pulled it out, sent it over to the factory for repair. Also replaced the broken face. I think it cost me about $50. You might talk to them. If you can do without it for a couple of weeks you may be able to send it to them for repair, if you don't want to purchase a new one.
2005 Kountry Star 3907, ISC330, Spartan chassis, M&G braking, Blue Ox Aventa XL