1. Tsvina inopinda muvhavha yevhavha yegasisolenoid vharafu. Solution: kuchenesa
2. Chitubu chakaremara. Solution: Tsiva chitubu
3. Kuwanda kwekushanda kwegesisolenoid vharafuyakanyanyisa kukwirira, zvichitungamira kuhupenyu hwayo hwebasa. Solution: Tsiva nezvigadzirwa zvitsva
4. Chisimbiso che spool chikuru chakakuvadzwa. Mhinduro: shandura chisimbiso
5. The orifice yakavharwa. Solution: kuchenesa
6. Iyo viscosity kana tembiricha yepakati yakanyanyisa. Solution: Tsiva iyo gasi solenoid vharafu modhi ine zvirinani kushanda