Electron tube (Mosfet?) failure error on Surron Storm Bee board

[Asfeuok]

Hey, new to the forum here! Heavy EV enthusiast.
So I have a 2024 104v Surron storm bee (6 months old, 1st owner), and recently on a turbo mode acceleration i got an engine light with ER100 being on the screen, citing an electron tube issue in the Surron diagnosis checkbook. To make note, I've been riding this bike in hot climate in Vegas for a few months (110F average temp) after originally buying the bike in Boston and riding 2 - 3 ish months where it's colder, and I used turbo mode and whatnot all the time with no issues, but it was only ~50F there.

Now - I'm convinced this was a heat related issue, being I'm also a big heavy guy (310 lbs) and the bike has a 55a controller (Thats what it says for the stock FOC sine wave one listed on their site) which is pretty low in terms of smaller electric vehicles (even some 50 mph scooters have like 150a ish controllers) ) ~~~~~ Mainly, I'm trying to see if there's any aftermarket controllers with higher Amperage i can use, and best case I can repair the mosfet instead of shelling out 1200 for another?

Lastly... there's very low aftermarket support for the bike, especially with how much more popular the ultra bee is, and this bike seems built very similar to the smaller ones, but with all the controllers made for that and the light bee, is there a chance this bike could be easily mod-able too? I've heard of fardriver, and EBMX. There is, to my knowledge, not a single aftermarket controller and/or motor i could put in this bike. but that high power battery I feel could handle it.

 

[E-HP]

Hey, new to the forum here! Heavy EV enthusiast.
So I have a 2024 104v Surron storm bee (6 months old, 1st owner), and recently on a turbo mode acceleration i got an engine light with ER100 being on the screen, citing an electron tube issue in the Surron diagnosis checkbook. To make note, I've been riding this bike in hot climate in Vegas for a few months (110F average temp) after originally buying the bike in Boston and riding 2 - 3 ish months where it's colder, and I used turbo mode and whatnot all the time with no issues, but it was only ~50F there.

Now - I'm convinced this was a heat related issue, being I'm also a big heavy guy (310 lbs) and the bike has a 55a controller (Thats what it says for the stock FOC sine wave one listed on their site) which is pretty low in terms of smaller electric vehicles (even some 50 mph scooters have like 150a ish controllers) ) ~~~~~ Mainly, I'm trying to see if there's any aftermarket controllers with higher Amperage i can use, and best case I can repair the mosfet instead of shelling out 1200 for another?

Lastly... there's very low aftermarket support for the bike, especially with how much more popular the ultra bee is, and this bike seems built very similar to the smaller ones, but with all the controllers made for that and the light bee, is there a chance this bike could be easily mod-able too? I've heard of fardriver, and EBMX. There is, to my knowledge, not a single aftermarket controller and/or motor i could put in this bike. but that high power battery I feel could handle it.

In your environment and riding habits, I'd install temp sensors in the controller, motor, and maybe the battery, and get a controller (or cycle analyst, etc.), that can provide automatic rollback of power when the components get too hot. The controller should be oversized (high rated current), but limited to 55A or whatever you need, so you have headroom and the ability to shed the excess heat. Do as much as you can to help the ebike protect itself, knowing that nothing can really protect it from the rider's throttle hand.

 

[AGS]

A Storm Bee will be operating at around 22.5kW in turbo mode and that’s around 200 battery amps. It’s going to get very hot in the Las Vegas heat.

A new controller costs around £1000 in the UK so probably around 1000 USD, so it’s definitely worth trying to get the mosfets replaced, before biting the bullet on a new controller.

I would have thought the OEM controller would have rolled back, but maybe it doesn’t in Turbo mode. The Navy has a battle override button on it‘s equipment that disables all of the interlocks during a battle, so maybe Turbo mode does the same on the Surron.

I have fitted external temperature display on my E-moto so I can see exactly what the motor and controller temperatures are and the display sounds an alarm just in case it overheats and I’m not looking.

A Fardriver ND1081800 is similarly priced to the Surron controller, so it’s not really worth the hassle of retrofitting it.

ND1081800 | far-driver

ND1081800 12000-20000W 84V 96V 108V Sine Wave Programmable BLDC Motor Controller With Regen For Electric Scooter Motorcycle

www.far-driver.com