About Kazolt

Built by an e-bike rider who fixes their own bikes.

E-bike displays love to throw cryptic codes like E07 or Error 30, and the manual (if you still have it) rarely explains what to actually do. This site turns those codes into plain English and a checklist you can work through in the garage. It starts with the free, five-minute checks that fix most problems and ends with the jobs that belong in a shop.

How the fixes are written

• Easiest first. Every checklist starts with free checks like charging, reseating and reconnecting before anything that costs money.
• Safety over saving money. Anything inside a battery, a controller, or the high-power motor wiring is marked as a shop job.
• Honest about uncertainty. Error codes mean different things on different brands. Each page says what a code usually means and reminds you to check your bike's manual.

What this site doesn't cover

Nothing on getting around a bike's built-in limits or tuning it for more power, and nothing on opening or rebuilding battery packs. Those can be dangerous, can void warranties, and can make a bike illegal to ride.

Where the code meanings come from

Every error code page names its source and shows a badge: From the manual (an official manual or brand support page) or Commonly reported (forums or repair guides, used only when no manual could be found). When two official manuals disagree, the site shows both and says which display each applies to.

Found a mistake?

If a code means something different on your bike, or a fix didn't work, please get in touch. Corrections make the site better for everyone.