RadMini error 30 / connector check guide
In the unlikely event you see an error 30 message on your RadMini, perform a connector check to ensure all connectors are secure and in good condition.
Follow the steps below to check the connectors on your bike to resolve the issue. This guide uses a 2019 RadMini, but the steps will be similar for other RadMini models.
Tools Needed:
- Flat side cutters
- Phillips head screwdriver (for 2016-2018 models)
- A camera
- Zip ties
The process for checking the connectors below will involve unplugging the connector, inspecting the inside for damage, plugging in the connector, and turning on the bike to check if the error persists while the connector is plugged in.
- Get the bike ready for maintenance. Turn off the bike, remove the battery, and press and hold MODE on the LCD display remote to discharge remaining power.
- Check the battery and battery mounting tray terminal contacts. Visually inspect the terminal contacts. If they are in good condition, reinstall the battery and turn on the bike to check if the issue is resolved. If the bike will not turn on, remove the battery, discharge remaining power, and check the next connector.
- Locate and unplug the connector, starting with the battery connector. Follow the cable from the part to the connector. Snip zip ties for easier access, then pull each side of the connector directly apart without twisting.
For 2016-2018 models: Use a Phillips head screwdriver to remove the cover plate on the box beneath the battery to access the connectors inside.
- Inspect the inside of the connector. If the inside of the connector is wet, dirty, or damaged, take a photo and contact Product Support. If the connector looks normal, continue to the next step.
- Plug in the connector. If the connector has no visible damage, line up the internal notch and pins (and external indicators) and press directly together without twisting.
- Check if the error persists. Reinstall the battery, turn on the bike, and check if the error persists. If the error persists, continue to the next step.
- Check the next connector. Turn off the bike, remove the battery, discharge remaining power, and check the next connector.
Repeat these steps with the three connectors listed below; the battery connector, display connector, and wiring harness connector.
Click the headings below to view the location of each connector.
Location: Near the bottom bracket
Color: Black inside
Check the connection between the battery and the controller. The battery connector is the large connector located near the bottom bracket. The connector is flat on one side and is black inside with two large prongs.
Location: Handlebar area
Color: Silver metal connector; black inside
To unplug: Untwist the metal portion of the connector, then pull directly apart without twisting.
To reconnect: Align the internal notch and pins on the connector ends, and press directly together, without twisting. Then, twist the metal portions until the connector is secure.
Location: Near downtube (2019 and newer models) or in the connector box near the bottom bracket (2016-2018 models only)
Color: Black inside
2016-2018 RadMini:
Follow the steps below to check the remaining connectors.
Note: The process for checking the connectors below will involve unplugging the connector and turning on the bike to check if the error persists while the connector is still unplugged.
- Get the bike ready for maintenance. Turn off the bike, remove the battery, and press MODE to discharge remaining power.
- Locate and unplug the connector. Follow the cable from the part to the connector. Snip zip ties for easier access, then pull each side of the connector directly apart without twisting.
- Inspect the inside of the connector. If the inside of the connector is wet, dirty, or damaged, take a photo and contact Product Support. If the connector looks normal, continue to the next step.
- Check if the error persists with the connector unplugged. Leave the connector unplugged. Reinstall the battery, turn on the bike, and check if the error persists. If the error persists, continue to the next step.
If the error is resolved when the connector is unplugged, the part may need to be replaced. Contact Product Support for more help. - Turn off the bike and plug in the connector. If the error persists, turn off the bike, remove the battery, and discharge remaining power. If the connector has no visible damage, line up the internal notch and pins (and external indicators) and press directly together without twisting.
- Repeat steps 1 through 5 on each connector listed below until the error is resolved. Once resolved, replace zip ties and trim to be flush and smooth. Test the bike fully and ride Rad!
Location: Near the chainstay, on the right side of the bike
Color: Black inside
Location: Back of the bike
Color: Blue inside
Location: on the rear rack
Color: Blue inside
This connector only exists on bikes made in and after 2019 that also have a rear rack installed. Trace the cable from the first taillight connector to the connector plugged into the controller.
Location: Handlebar - left side
Color: Red inside
Trace the cable from the left brake lever to the connector at the front of the bike.
Location: Handlebar - right side
Color: Red inside
Trace the cable from the right brake lever to the connector at the front of the bike.
Location: Handlebar area
Color: Yellow inside
Trace the cable from the throttle to the connector at the front of the bike
Location: Front of the bike
Color: Red inside
Trace the cable from the headlight to the connector.
Location: Near the bottom bracket
Color: Yellow inside