Is your DVS ventilation fan running weak? Is your home starting to get condensation. Check your fan. It could just be that you work your system too hard for years and years without giving it a rest so now. Its time to power up. This Auction is for a Genuine fan from Germany. You get a Brand new system back for another long run.

Please make sure the screw hole is identical as shown in phot. It will not work with the red type fan on the right hand side of the photo.

Have fun