so long as the water moisture is not enough to damage the electronics it should work fine. HTH
(Ive seen this before as well.. Its just been a while, the newer ones dont normally have this problem IME
.. If this is a relitivly new heater you might want to look into contacting the manaifacture and explaining the moistrure to see if they will provide a replacement.. not that its needed but why take a risk of too much moisture if you dont have to..