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Rad Power Bikes error 10: Controller over temperature
Rad Power Bikes with Bafang hub motor and Rad LCD display (RadRover, RadCity, RadWagon, RadRunner, RadMini)WarningRide with caution
The controller overheated and cut power. Typical on RadWagon or RadRunner hauling cargo up long hills, or in hot weather. It clears when the controller cools.
Likely causes
- Long climbs at full throttle with heavy load
- Hot weather with the controller inside the frame bag or housing
- Failing controller producing extra heat
How to fix Rad Power Bikes error 10
- Stop and let the bike cool 10-15 minutes, then power cycle
- Pedal more and use throttle less on climbs; shift down
- Keep the controller area clear of bags and insulation
- If it overheats on easy rides, contact Rad support
Go to a dealer if: Go to Rad support or a shop if it trips without heavy load.
Warranty: Rad Power Bikes gives a 1-year limited warranty on electrical parts (2 years on some newer models and regions); contact Rad support with a video of the error before buying parts.
Typical cost: Usually free; controller USD 100-150 if faulty.
Warranty: Rad Power Bikes gives a 1-year limited warranty on electrical parts (2 years on some newer models and regions); contact Rad support with a video of the error before buying parts.
Typical cost: Usually free; controller USD 100-150 if faulty.
Still stuck? Take a photo of the display and show it to a local e-bike workshop. Bring the bike's system name (e.g. Bosch Performance Line CX) and the exact code; that saves diagnostic time and money.
Frequently asked
Can I reset Rad error 10?
Let it cool and power cycle.
Can I keep riding?
After cooling yes; pedal more on hills.
Warranty?
Yes if it happens in normal use.
Related Rad Power Bikes codes
Not an official Rad Power Bikes document. Compiled from workshop experience and public service information; details can differ per system version and bike brand.