Damp in bathroom towel storage cupboard

[Smedzz]

Hi all, ive just brought a bailet pageant series 7 champagne 2009 model, lovely caravan,but just found damp/ wet spots in the far rear corner of the caravan,only picked these up as were away in it at the moment and came acriss it whilst putting things away...
Any ideas on where the damp/ leak ciuld be coming from and how to fix

 

[Sam Vimes]

Are you sure this is damp caused by a leak or could it just be damp/mould due to poor ventilation?

 

[Mel]

I second what Sam said. We had a rear corner cupboard that was beset with condensation. First give the cupboard a good wipe out. Empty it and leave door open. If weather is OK and you are in the van leave a window open. See if it dries out and stays dry. Also get a damp meter. Cheap ones are available on Amazon and will be accurate enough to give you a good idea of wwhether this is surface water from condensation or if water has penetrated the wood because of water ingress ( I.e. damp)
Mel