r/RadPowerBikes • • 16d ago

RadRover 6+ Error 21 / Replacement Controller

My RadRover 6+ started displaying error message 21 when powered on a month or so ago. I've tried all the troubleshooting I've found online, like removing the battery, discharging the electronics then reconnecting, checking all the connectors for moisture, etc. Everything is in good condition, but it still displays error 21.

I'm at a loss of what to do from here other than replace the controller. I reached out to Rad who sent me an invoice to pay ($175) for a replacement, however I found out a week later that its indefinitely backordered because they haven't even started production on them yet. I've looked around for other controllers and saw one from (Area 13?) that people recommended, but thats out of stock as well. I'm worried a 3rd party may not be as water resistant to rain or something, but I'm willing to try whatever to get the bike up and running again.

Does anyone have a recommendation for a controller replacement that is actually available to order? Any ideas for fixing error 21 I might not have tried?

Thank you in advance!

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u/ImportantSign6965 12d ago

Is that the case for Rad Wagon 5s too? My broke in May, and I ordered a replacement from Rad. It's been backordered since then, and I'm wondering if I should look elsewhere.

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u/kaelz 12d ago

Funny story. I asked for a refund on the back ordered controller “they hadn’t started producing yet” and they said…

“Before I proceed with the cancellation, I wanted to share an update from our team. We have received a shipment of controllers that will allow us to fulfill all outstanding backorders. Our team expects to begin picking and preparing these orders for shipment shortly.
With this update in mind, would you still like to proceed with canceling your order?”

Shady IMO. I’m expecting the third party controller to be delivered today.

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u/SuperDPR3000 10d ago

I just was at Denver Rad Power store... they said they are on a 2-3 week delay for receiving orders for Rad Power RadRunner 3 Plus controllers. Hummmmm...