Symptom Perception Repair process Note
Insufficient ratio range Internal Gear Hub or controller do not have full range Reset the Internal Gear Hub to full overdrive and check the spline nut tightness Please follow these LINK1, LINK2 for instruction
    Please check the cable lengths is set correctly Please follow this link for video instruction
Interface and controller do not rotate Internal Gear Hub is blocked in full overdrive or full underdrive Unlock the shift system. Please follow this link for video instruction
Interface slips The interface slips on the axle and doesn’t shift Please ensure the proper interface is selected. Otherwise replace the interface  
Interface rotates around the axle The interface seems to move Please check the spline nut and tighten it if necessary Please follow this link for instruction
Overdrive latch opens The cable latch opens during shifting Please check the cable tension. The correct cable slack should be 0.5-1mm  Please follow this link for instruction
Locked interface/wiring in winter The system does not shift anymore Please put bike in a warmer place to heat up. As preventive action you can use additional grease on the cable and interface to prevent it from freezing.  
Insufficient ratio range Internal Gear Hub or controller do not have full range Reset the Internal Gear Hub to full overdrive and check the spline nut tightness Please follow these link1, link2 for instruction
    Please check the cable lengths is set correctly Please follow this link for video instruction
Interface and controller do not rotate Internal Gear Hub is blocked in full overdrive or full underdrive Unlock the Internal Gear Hub shift system. Please follow this link for video instruction
Heavy operation Under high loads/torques the Internal Gear Hub cannot shift The Internal Gear Hub in general should be able to shift, however the required forces become higher.  
  One-turn Interface One-turn interfaces shift through the range faster, but as a disadvantage they require more power to shift. If necessary, replace with a multi-turn. Read more about it in this article
  The ability to shift the Internal Gear Hub is limited Please check the cable slack to be 0.5-1mm. If the slack is correct, please check the interface and controller both can be shifted through the full range. Please check if there are extra bends that could cause additional resistance and reroute the cables if needed. If all options have been ruled out please contact the enviolo service center  
Cables stuck inside controller The cables inside the controller are locked up Too much tension on the cables or damaged cables might cause the cables to not run smoothly. Please replace the shift cables Please follow this link for video instruction
Water in display There is some condensed water in the display Moisture is possible in extreme weather conditions and big temperature changes during wintertime. Please however also ensure there are no cracks in the display. If the damp persists after a warmer period please contact the enviolo service center  
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