Funnily enough, we had the same problem when we were out last week, we have model OR51. Remote was working fine for the first couple of days and then died. Tried new batteries etc but no joy
We are not out again until next year so I was going to sort this out nearer the time but I have found a foreign seller on Ebay and was going to take a gamble and order one but wont be able to check if it works for a few months
Regards