Instructions and solutions

Instructions and solutions

In order to give you the best possible support when using your family bike, we have created an overview of simple errors and the related solutions.

Most electrical problems are caused by a single loose connection or a defective battery. Before troubleshooting, check the battery for bumps and breaks as well as all wires (follow all wires with your finger, including under the bike and behind the saddle) for visible breaks and defects.

This solution guide contains the following topics:

1. General electronic solutions

2. Battery guides and solutions


We always recommend that you have your Familybike serviced by a professional.


1. General electronic solutions

  1. Check that the battery is fully charged. To do this, press the battery level button while the battery is on. The battery must be 100% full (all 4 battery indicators should light up). By the way, always check whether the original charger supplied is being used for charging.
  2. Lock the battery lock and turn on the battery using the button on the side of the battery.
  3. Turn on the display and check that all symbols are activated.
  4. Check that the cable from the rear wheel (electric bike), from the front wheel (senior bike - 3-wheel and Long John) is correctly installed and that the next wire is approx. 20 cm away from the end of the wheel. Pull the two black plugs apart and make sure they are completely dry. If they're not 100% dry, use a regular blow dryer on medium temperature to dry them. Reconnect the connectors so that the arrows on the wires point towards each other.
  5. Check the sensor for the pedal crank (between the frame and the pedal crank). The sensor is a black little box with a wire going into it. Check whether there is no more than approx. 4-5 mm from the black sensor to the black magnetic plate on the opposite side (pedal arm with gears). If necessary, press and carefully attach the black sensor to the mounting bracket so that the distance is correct.
  6. Check whether the red sensor light on the pedal crank is lit. There is a small red lamp on the sensor. The red light should be on. It turns on and off alternately.
  7. Check whether the black magnetic plate, which is located opposite the sensor on the back of the right pedal arm, is correctly mounted. It should sit in the middle and the 3 small plastic mounting arms must not be broken.
  8. Make sure there are no loose connections on the controller. First remove the battery. Superior / Deluxe: Remove the 4 screws from the black plastic cover on the battery box against the saddle. The controller's large gray aluminum box is now clearly visible. Feel free to disconnect one cable at a time and plug it back in.
  9. Test whether the "walking aid" function (only 9-pole models from approx. 2015) works. Switch on the system and hold the "up arrow" constant for approx. 5 seconds. The motor must then be activated automatically. If the engine is running, the problem is with the sensor and the magnetic disk.
  10. If your family bike still doesn't work, contact
    You can advantageously press the "SET" and "↓" buttons at the same time, then an error code will appear in the display. Send us the error code by email and we will identify the error as soon as possible.

2. Battery guides and solutions

2.1 Instructions: Using a lithium battery

  • Don't let the battery drain completely.
  • Charge the battery regularly, even when the family bike is not in use, e.g. in winter every 2 months for 3 hours.
  • Don't leave a fully charged battery in the charger. This can lead to "overcharging" which can damage the battery.
  • Always take the battery in after every outing. Since it must not be stored outdoors in rain, direct sunlight or frost. This will also avoid the risk of theft.
  • CONDENSATION - ATTENTION - Always charge your battery at room temperature. If you have to charge your battery over the winter months, the following is IMPORTANT: Always wait until the battery has reached room temperature before you connect it to the charger. In this way you ensure that no condensation forms due to the temperature differences and that the battery is damaged.
  • See the back of the battery for more information.
  • The service life of a lithium battery is also significantly reduced by long-term storage in frost or long-term storage. See Storage of the battery.

2.2 Instructions: Storage of the battery

If the Family bike is left standing for a long time (more than 2 months), it is recommended to follow these tips in relation to:

  • Store dry / maximum at room temperature
  • Protect your battery from moisture and water
  • Store horizontally and stably
  • Protect from excessive heat and cold as well as direct sunlight
  • The battery must be either fully or partially charged.

2.3 Instructions: Only short range when fully charged

  • Does your family bike roll well without consuming electricity, ie. that there is no resistance on the wheels e.g. brakes.
  • Are the tires inflated to approx. 4.5 bar? See max.tire pressure on the side of the tire.
  • Lift if necessary. Lift the wheels off the ground and ensure that the wheels can run 2 - 4 laps freely without resistance.
  • Make sure that the Familybike is generally not lacking oil lubrication of the chain, the wheel / wheel bearing, the crank and the brake spring and that your Familybike has undergone the mandatory retightening (approx. 20 km) and servicing (every 500 km), preferably by a professional.
  • Use only the original charger.
  • Make sure that the battery is not exposed to low outside temperatures for several days.
  • The display must be set to the correct wheel size (electric bike = 26 inches, El Long John = 20 inches). The wheel size is the first number (above) when you have your display switched on.
    • Hold "SET" for about 5 seconds and use the up and down arrows to set the size.

We always recommend checking the following:

  • The battery is locked while driving
  • The battery wears out like everything else. Expect your battery to last around 600-900 charges, or 2-3 years. Depending on use and route. As a battery nears the end of its life, performance will continuously decrease.
  • Please also note that the range is significantly reduced if you drive above the normal level 1-2. (A total of 6 power levels. The highest level corresponds to the motor support for approx. 15 km and approx. 40% - 50% of the pedal force and runs in mountain terrain. Remember that there is still some power available at the lowest level of the battery The last line of the battery indicator in the display should flash before there is not much left.

2.4 How to solve: My battery does not work

  • First, check whether the battery can be charged or not.
  • Press the power indicator on the battery and check how much the battery is charged.
  • If the battery is fully charged, it is likely the electrical system is causing problems. See "General Electronic Solutions" at the top of this page.
  • If the battery is not receiving power:
    • Then check that the charger is working. Are the wires pushed all the way into the charger?
    • Is your socket working?
    • Is it the original charger that you are using?
      If all of the above is fine, the little lamp in the charger should be green.
If the battery still does not work and is less than 6 months old, the failure is covered by the warranty. You can send us an email clearly describing the error and attaching your invoice.