Nuevo EK 2010 - DAMP

Our Nuevo - bought new, has a significant damp problem in the bottom cupboard at the rear of the vehicle on the nearside under the sink draining board and cutlery drawer BUT kindly note it is the bottom cupboard.
We are trying to work out where the water is gaining access. Has anyone experienced this problem before and if so, a) where was the water coming in, b) how did you fix it and c) what materials did you use? Any advice would be gratefully received.

Your not far from the A/S workshop, let them have a wee look, my 09 Nuevo had water ingress under the cooker and sink, water was coming in the top rear corner were the band had come un stuck.
They had to remove the back glass fibre bumper and peel up the whole of the rear panel to expose the plywood board underneath ,it was black with mould and damp, fortunately the techie guys dried up the back panel and re adhered the panel.
No problems with water ingress again.
Boaby

My leak was a pinhole in the cold tap flexi hose.

Peter