Rad Power Bikes error codes

US direct-to-consumer e-bikes (RadRover, RadCity, RadWagon, RadRunner, RadExpand, Radster) with LCD, LED, Rad UI and colour displays.

• 6 Battery undervoltage medium
• 10 Battery overvoltage high
• 12 Motor stall warning low
• 15 Torque sensor error medium
• 16 Controller error high
• 17 Throttle on at start-up low
• 21 Abnormal current medium
• 22 Throttle fault medium
• 23 Motor phase fault high
• 24 Motor hall sensor fault high
• 25 Brake switch fault medium
• 30 Communication error medium
• 31 Power button / power-on fault low
• 34 Stuck button low
• 35 Controller temperature high
• 36 Motor temperature or speed sensor high

Systems and displays covered

• LCD display (3-button remote) – Most Rad models 2016–2020 (RadRover 1–5, RadCity 1–4, RadWagon 1–4, RadMini 1–4). Shows numbered error codes.
• LED display – RadRunner 1 and 2, RadMission, RadExpand 5. Shows codes as flashing pedal-assist level lights.
• Rad UI display and remote – RadRover 6 Plus, RadCity 5 Plus, RadRunner 3 Plus, RadTrike. Remote shows 'E' plus lit power bars (lower bars = first digit, top bars = second digit).
• Colour display – Radster Road, Radster Trail, RadWagon 5, RadExpand 5 Plus, RadKick 7-Speed and Belt Drive (2024+).