Why is my BUSCH R5 RA 0165 D fuming or expelling oil?
- OOmar KirkSep 12, 2025
If your BUSCH Water Pump is fuming or expelling oil droplets through the gas discharge, it could be due to a few reasons. The exhaust filters (EF) might be partially clogged, so try replacing them. Also, ensure that the exhaust filter (EF) with o-ring is correctly positioned. If the float valve (FV) isn't working properly, contact Busch for repair.