Rad Power Bikes error codes: 21, 22, 23, 24, 25, 30

We document Rad's codes because owners still have these bikes and still see these codes. That isn't a recommendation to buy one. If you're shopping, our Rad Power Bikes alternatives page is the better start.

What Rad publishes, and what it doesn't

Rad's older support site had separate code pages for its color-display bikes and the RadTrike. When we checked on 24 October 2026, those addresses on support.radpowerbikes.com returned "page not found", so we don't repeat what they used to say. What's live today:

• The owner's manual. The 2019 RadWagon manual (V4-004) has an "Error Detection" section with the six codes below. Rad says these are "the most common" codes. Newer models have their own manuals on Rad's Assembly Videos and Manuals page, and we haven't confirmed that every current model uses the same list. Check yours.
• Help Center guides. Error 21, 22 and 23 each have a guide, written around a 2019 RadCity Step-Thru. Rad says the steps are "the same for most models."
• No official guide for 24, 25 or 30 that we could find. For those, all we have from Rad is the manual's definition and its advice to contact Rad.

Rad Power Bikes error codes at a glance

The Rad manual's advice sits above the table: "If your bike has an error code displayed at any time it is recommended that you cease operation and contact Rad Power Bikes immediately." Everything in the "safe checks" column is our narrower list of things an owner can do without tools.

Steps to try, in order

1. Stop riding and switch the bike off. Note the exact code, and whether you were climbing, braking, or just starting.
2. Check the label on the battery against the CPSC model numbers above. If it matches, stop here.
3. Switch on again. For code 21, Rad says turning off and on "can often clear" it.
4. Check what you can see. Is the battery fully seated and locked? Do the brake levers spring back? Is any cable pinched or hanging?
5. For 22 and 23, Rad's guides say to turn the bike off, remove the battery and press the power or MODE button to discharge remaining power. Then look at the throttle or motor connector. Rad's own wording is to pull the two halves "directly apart, without twisting," look inside for moisture, dirt or damage, then line up the notch and arrows and push them straight back together. If you aren't comfortable with that, take it to a shop instead.
6. Reinstall the battery and test before you ride.

What Rad's Error 21 guide adds, and why we stop short

Rad's Error 21 guide goes further than we do. It has you unplug the battery connector and the motor connector under the frame, snipping zip ties to reach them. It also says that if contacts or connectors look wet, dirty or damaged you should contact Rad's product support. We don't list the battery-connector or zip-tie steps as owner checks, because they involve the bike's main power wiring. Rad's own page ends with a warning that ebike repair "can require specialized tools and skills" and recommends a professional bike mechanic.

Warranty and support are a separate question

Rad's own warranty page says the current owner has no obligation to provide warranty or other service for products bought before 15 December 2025. Whether that affects you is covered on our Rad owners page. A battery that won't charge is a different problem from an error code; Rad's charging help page and our e-bike battery won't charge guide cover it.

FAQ

What does Rad error code 30 mean? Rad's 2019 manual calls it a "Communication Fault." Rad doesn't have a Help Center guide for it that we could find. Switch off, check the battery is seated, restart, and contact Rad or a shop if it returns.

What do the flashing pedal assist lights mean on an LED display? Rad's guides say level "0" flashes for error 21, level "1" for error 22, and "0" and "1" together for error 23.

Can I clear a Rad error code by resetting the display? Rad doesn't describe a reset for these codes. Its guidance is to switch the bike off and on, then work through the checks. If a code won't clear, the cause is still there.

Is it safe to keep riding with a code showing? Rad's manual says to stop riding and contact Rad. We'd follow that.

Other e-bike makers

Not on a Rad? See the e-bike error codes hub.

Written from Rad's own documents. EbikePost editors have not ridden or repaired these bikes. Codes can differ between models and model years, so check your own manual.