It is the Owners Corporation’s responsibility to arrange and pay for an expert inspection discover the cause of any damp problem. They can then determine whether it is a OC problem or an owners problems. A problem should be correctly investigated to ensure that it doesn’t affect the structural integrity of the building. Damp can equal water which in turn can lead to much bigger more expensive matters.
I believe it is fine for members of the EC to have a look at the problem. But it is up to a professional to state the cause of the matter.
We had an owners claiming there was rising damp in his unit. An expert determined that he owner didn’t maintain his property properly. He suggested some basic housekeeping to correct the problem. But at least it wasn’t anything major!