Originally Posted by gerryvz

If green o-rings don't solve it, the EHA is leaking from one of the weep-holes on the front or back. It's toast -- replace it with a new unit via Amazon or AHAZ.

They come Pre-set from Bosch so install and see it it works well out of the box. They usually do.

I have an EHA replacement how-to on the C126 sub-forum at *********.com.

Cheers,
Gerry