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On early generation CCS, the motor controller (ECU) will reach a high temp level and the system will shut down to avoid damage. Under load the controller will heat up, if it heats up faster than it cools down the internal temp will rise up.
As soon as you stop, the bike starts cooling down enough to all the system to work again. If you shut it down and try to start it back up and the temp is still too high, it will not let you start up.
Overheat condition can happen when:
1. High boost setting "S" mode on steep hill or pulling heavy trailer.
2. Fit rider, cranking strongly on the pedals which will send the highest level of power through the controller for extended steep uphill terrain.
3. Heavy loads and low speeds where less wind is blowing over the frame.
Juiced Bikes Current-Series bikes made after 2016 have improved thermal management and will very rarely encounter over-heat conditions. We have also added a temperature monitoring function in the advanced display mode of the LCD display so you can monitor the controllers temperature while riding.