this is a difficult one as the water could be coming from higher up then running down
if possible pull out the machine put newspaper underneath remove the top allow to fill ,now check all pipes for wetness, or a whitish powder stain follow this upwards to the top of the offending pipe, check the clips for tightness Next check the door seal for tiny splits/holes, check the drain filter rubber sealing ring,or has the drain filter been fitted correctly, lastly check the drain pump, look for any rust stains around hear means the internal gland seal has failed, a replacement pump will be needed
wirecutterman, May 2009