www.sprite-caravan.co.uk go to this site which appears to be sprite and select contact. Email them explain the problem you will need the chassis number, this may be security etched in to the windows or check the chassis plate usually around the tow hitch A frame. Either email or telephone if in UK or email if not.
Why did I put the last bit! because its a world forum.
Only a guess I had problems with one of my caravan handbrake levers the rubber grip used to ride up in hot weather when using the hand brake and then could not depress the button to release until I worked the rubber hand grip down the handle again. Wrapped the bottom half with duck tape to stop it movin up.
Bob U.k
January 2013
howtomendit.com for free repair help, information and advice.
Try fixfault.com to fix caravans/motorhomes.