Screen wiper's

Hi I own a 2010 Scenic and my wipers have suddenly decided to go haywire! the passenger side wiper moves into the up position then stays parked in that position whilst the drivers side wiper only works intermittently and I have to turn the wipers off/on to get both wipers to re-set into standard position then again, only the drivers side wiper works!



I am having to go through this charade every time it rains currently as I haven't got the time or money until the new year to take it to Renault which I am hoping won't cost me the earth!