Models with KD21C or KD218 Displays

Error codes may only be on the display briefly. If you experience an issue, safely glance at the display to see if there is an error code. If the information below does not resolve the issue please contact support: https://ride1up.com/contact/


CODEERRORSOURCE OF ERRORSuggested First Steps
21Voltage Current ErrorThe battery is not supplying the required voltage to power the display and motor. This can be caused by working the internal controller, motor, and/or battery too hard in some cases (long extended climbs with the rider not pedaling hard enough).Safely pull over and shut the bike off. Wait 5 minutes and then turn the bike back on.
22Throttle ErrorMost commonly caused by a physical hardware issue (lever stuck down, damage, etc.)When you press and release the throttle, it should return to the original position. Check for and remove any obstructions. Check the throttle and throttle cable for damage, such as a cut or frayed cable, or loose connection point.
23Motor Phase ErrorThis error might appear if you don't reconnect the cable after removing the rear wheel (for example, after changing a flat tire, or transporting your bike in or on on your vehicle). Check the motor cable connection point by the chainstay. Check the cable connection, disconnect carefully, and make sure it is free from grit or contaminants, properly aligned, and firmly connected. 


24





Motor communication or hall sensor error

At least one of the motor phase wires has been damaged or is temporarily disconnected. Another possible cause is damage to the motor cable as it exits the axle, perhaps if the wheel was dropped on the cable or something hit or pulled the cable.Check the motor cable connection point by the chainstay. Check the cable connection, disconnect carefully, and make sure it is free from grit or contaminants, properly aligned, and firmly connected. Inspect for damage throughout this process.
25EBS (Electronic Brake Shutoff)

Core-5, 500 Series


This can happen often after a crash or when the bike is dropped. Disconnect the electronic brake shut-off wire 1 at a time to determine if it is caused by 1 or both. Inspect both levers for signs of damage or lever not returning to the proper position 
25EBS (Electronic Brake Shutoff)
700 Series Tektro Brakes 		This can happen often after a crash or when the bike is dropped, where in these cases . Disconnect the electronic brake shut-off wires 1 at a time to determine if it is caused by 1 or both. Adjust the brake lever/sensor that is causing the motor to cut off. 
30Communication ErrorThere is a problem with the connection from the internal controller to the display. The display is not receiving vital information. Often, the issue is a stressed or damaged display cable; however, it can be related to the internal controller and, in rare instances, the motor.Check the display cable for damage; tears, corrosion, etc.


Roadster V2 and CF Racer 1

Error codes may only be on the display briefly. If you experience an issue, safely glance at the display to see if there is an error code. If the information below does not resolve the issue please contact support: https://ride1up.com/contact/


Revv 1

Error codes may only be on the display briefly. If you experience an issue, safely glance at the display to see if there is an error code. If the information below does not resolve the issue please contact support: https://ride1up.com/contact/


CodeErrorDefinitionSuggested things to check
4The throttle is not in neutral position (all the way forward)The throttle is stuck in the open positionCheck the cable connection and verify throttle is in the neutral position
5Throttle MalfunctionThe throttle is not functioning Check the cable connection and verify throttle is in the neutral position
7Over-voltage protectionBattery voltage is more than the internal controller can handleCheck battery voltage 
8Motor Hall cable malfunctionThe motor cable may be damaged or looseCheck if the motor cable is damaged or loose, disconnect and reconnect
9Motor Phase cable malfunctionThe motor cable may be damaged or looseCheck if the motor cable is damaged or loose, disconnect and reconnect
10Motor Temp Too High This happens when the motor gets too hotPower off the display, wait until the motor temperature cools down, and start to have power again
11Motor Temp. Sensor malfunctionFailed motor temperature sensor Motor replacement needed
12Current sensor malfunctionFailed current sensor malfunctionInspect controller cables
13Battery Temp Too HighThis happens when the battery gets too hot the battery management system will cut power from the battery to prevent damageInspect the battery and shut it off to let cool down, once cooled down continue riding
14Controller Temp. is too highThis happens when the internal controller gets too hotInspect internal controller connections and shut the bike off to let cool down, once cooled down continue riding
15Controller Temp Sensor malfunctionThe Controller Temp Sensor not working Inspect connections at the controller, replace the controller 
21Speed Sensor malfunctionThe Speed sensor not workingCheck the rear wheel connection
22Battery Management System Communication MalfunctionThe battery management system is not communicatingInspect battery connections
23Headlight malfunctionThe headlight is not functioning Check connections at light 
24Headlight sensor malfunctionThe headlight is not functioning Check headlight connection
25Brake Sensor malfunctionThe brake sensor needs adjusting Disconnect the electronic brake shut-off wires 1 at a time to determine if it is caused by 1 or both. Adjust the brake lever/sensor that is causing the motor to cut off.
26Speed Sensor Signal malfunctionSpeed signal sensor in bottom bracket cadence sensorCheck the cadence sensor connection 
30Communication Errorcheck display connection and connection at the internal controllerCheck if the display cable is loose, and check if cable connections to the controller are loose
39Communication Error
Reach out to Ride1UP SupportReach out to Ride1UP Support