This really helped me, I had no idea what to even check and Jonny , you put it in perspective for me and it was my brakes. I got my e-bike working because of you. Thank you so much

You Sir, are a legend. Had my Kalkhoff booked in for what was going to be an expensive repair. Checked all connections and the head up display wasn’t quite connected properly so the motor wasn’t connected to it! All back working now thanks to watching your video and listening to your advice.

Thank you so much! My power assist and throttle weren't working this morning and this video gave me the solution I needed - The magnet on my hydraulic brakes had shifted. I screwed it back on and it worked perfectly again!

I wanna thank u , my boyfriend has an eco motion electric bike ,and it just stopped working , and I seen ur video so I showed it to him and the first thing he tried , it worked .

oh my god cleaning out the battery connection on the frame itself worked for me. THANK YOU!!!!!

Hey Johnny, john e. here with a thank you for helping me to diagnose power loss due to a loose connection between motor and rest of bike multi-pinout connector. Must have worked itself loose.

Question: my ecotric rocket is 3 years old and recently the motor always operates at approximately level 4. It has 0-5 levels. But even at level 0 it runs up to 17mph as if it's in level 4. This happened recently I believe after a rear tire change.

Thank you for your time, info and expertise. I have a Rambo G3 750 bafang. I'm having problems with the controller turning off during operation typically under a heavier load or uphill. My battery connections seemed good and my voltage is good on my. Do I need to check and likely start by replacing the controller in the motor

Thank you for your tips and advice. Your a big help. Am new to the Ebike world. I had a bad brake connection. Where it wasn't allowing my display screen to come on. Thank u again. A fan from here on out

Brilliant video.saved my bacon thank you so much..from the UK

Johnny love your videos. I have a question on a new build with a bafang 750 mid drive. Everything seems to be working, but only for like 1 second then motor slows way down, if let off of throttle when hit I again get full power for about a second then it cuts back to barely working again. Any help would be greatly appreciated , I do have another bike with all the same parts so I will change 1 piece at a time to try and find the problem but you might have seen this before.

Hey Johnny, thanks for all your vids mate, there gggggreat! I'm in the UK Newcastle upon Tyne, I've made my own ebike from an old trek mountain bike, I love it 24 mile a day. I've done 1100 miles on the bafang 750 watt. Today it has come up with error 12 motor kept cutting out then working again, did a weird peddly juddery thing. I did the off and on again thing and it worked then stopped. Finally I realised that the throttle would still work with out any problems. Luckily I had enough charge to get home on just throttle any ideas. It's really wet and muddy my bikes getting caked everyday I'm hoping it's some water in somewhere causing havoc???

Thanks alot ! This video helped me fix the motor issue

Another absolutely fantastic vid!! Please keep nerding out. Thanks from Seattle

3:24 thank you so much for this video... My Dad's e-bike had an issue, the problem was simply to check the wiring.

Detailed video!!! However, I have a situation I need advice on. Got a used Panasonic ebike without it's charger and wondering which connectors to use as charging points. I see: T - S C + and not sure what else to do as I have tried the + and -. Please help advise. Thanks a-bunch!!!

Mine gets error 16 so cuts when doing both breaks and it only supports in a certain gear also its a brand new bike . Replaces many things including the speed sensor and new shifters but still acts like that?

Appreciated John, Thank You for Sharing.

Thanks for all you do Do when i turn my battery on the 3 red led's come on for couple of seconds 2-3 seconds then go out any ideas mate

I was all bummed my bike crapped out and was looking for more technical troubleshooting, thought what a worthless video, Duh who wouldn't have checked their connectors and cables, stoopid! Been through the continuity testing of the mosfets, etc. I totally thought I wasted my time watching your video! Decided to go back out in the garage and check all my connections... Eh, you nailed it brother! I'm eating crow. Sure enough the axle wasn't quite tight enough so it spun a bit and kinked the cable that goes through it, I straightened it all out and she fired right up! @JohnnyNerdOut for the WIN!

Thank you,you saved my day , simple but useful 👍

Thank you 👍My issue might be severed cord. It seems only the black outer covering is cut in three places. I don't know how that could have happened but that cord seems responsible for my front break. My problem is that the wheels don't move as easily as before and the pedal assist isn't as strong as it was, as well as the throttle slows to a stop. When the wheels kind of lock and are hard to turn, the assist doesn't work and sometimes it works suddenly causing it to jerk. I wonder who I can take my bike to to look at it. Are there places that take care of bikes?

really good video! Thanks! i have the electra townie 7d step thru and i have the 3 red leds lights flashing. any idea?

My ebike cut out yesterday and I disconnected the brake Sensor from the control and now it works

Great vid, Good idea to check the screws on battery one fell out on mine lucky I seen it and another was loose,

Okay it's not even been 45 seconds into the into the video and this guy already got money as a sub met Clint Eastwood will live forever

great video. very helpful.

That Jamis on your website looks so nice. Added to my cart I may pull the trigger.

great, simple troubleshooting nthat applies for any ebike...good stuff, thanks! momma will be back in the saddle by noon!

Our Aventon Pace bikes were flooded in Ft. Myers Hurricane Ian. We rescued them the next day and washed them off. The batteries were destroyed. Took them to a bike shop....they cant get them to turn on and advised trashing them. Any thoughts on how to proceed? They are just trying to get us to buy a new bike.

Suddenly my new Emojo caddy pro gets no power to wheel but controller lights up. I will try your video points

I've watched a few videos recommending re-packing the motor with grease after the first 600 miles. Is this something you recommend?

Hi Bud, just subscribed to your channel here’s a good one for you, I was replacing the crank bearings in my Giant Stance E+1 all good then I noticed that the positive & negative connection to the motor had a small amount of corrosion starting not bad but decided to change it. Unfortunately I cut across both wires at the same time there was a short across the cable’s ( not connected to battery ) didn’t release the motor must hold a small charge. Now when all reassembled the bike trying to go but stops after a second or so what will I have blown up inside the motor, disassembled can’t see anything burnt or melted really annoyed with my ignorance.🤨

Hi. I'm having trouble with my fuell flluid-1s. Belt drive ebike. The company haven't been able to help me with the issue. I think the chain ring bolt might be lose? The pedal crank has about 1/4 inch of slack on mostly the right pedal when it's at the highest postion. It's this way with or with out the motor turn on. And pedal it backwards there a light blockage of some kind. It pedals past the blockage but it's there. Any suggestions? Thanks. Steve

A fine video Thank You Kindly - I've enjoyed my Swagton for 1 year yet after slightly adjusting the hand brake it has show no power what so ever the past 6 months, What adjustment should I make to the Brake Connections to correct, Thank You.

Thanks it is a PA and Throttle. Battery is brand new but could have a defective cell. If the controller easy to check?

Thanks so much.Very infomative about ebike battery chargers

Hi thanks for your help.i have and ebake but when it start after a minute it get off alone like the battery goes flat at one

My issue is the pedal assist surges, this started just recently. I bought bike new last year but when using full throttle mode, runs smooth. I have not unplugged brake sensors yet.

This is super helpful!! Thank you very much, from New Zealand!!!

2 minutes into your video and my bike is fixed! Thank you sir!!😊

JohnnyNerdOut WOW this video saved me the first thing I tried (brake cable not aligned properly on handlebars) saved me thank you so much!

My custom built e bike died when I was braking the regen came on for half a second then gone I look down to a blank display it will not power on anymore the battery is fine and at about 80% -85% charge my 12v system gets it's power from the controller and all the lights work just fine. I've only done limited testing on the controller but I think it is the display because the on/off is connected to it and if turning the key off cuts power to the display then that on/off button may do the same.

Excellent video. Leaving the battery on the bike for charging protects contacts. Chaining up the bike to stop it falling over , also protects contacts. Cheers mike

Hi, I bought a battery and charger for a pre-owned Geliesen Ebike. When I received the battery, the bottom doesn’t have the pin connectors. It’s just metal on the bottom. Is it possible to still use the battery with this bike?

So I ordered a new controller and hooked everything up and tried to run it and it wouldn't even power on so I tested the wires from the controller to the throttle and they were dead. Any suggestions on what would be wrong ?

We bought two Lectric XPs. If yours arrives and works out of the box count yourself lucky. If it does not you'll spend a few hours underneath a brand new bike following emailed trouble shooting guides. If you fix your brand new bike you're lucky again because it's a high hurdle to get Lectric to get a new, working bike sent to you for the good money you've already paid. Things happen, we all understand that. The true measure of a company is how well it puts things on track, and makes a customer happy when things do go wrong. Lectric e-Bikes has a ways to go on this count. Be advised.

Hi. Maybe you can help me troubleshoot. I have a converted e-trike with an MXUS motor hub that uses a 52v battery. Recently, any time I'd ride it, the e-trike turns itself off, then I turn it back it turns off again, then I turn it back on but won't come on unless I press the button 10x. Then it will come back on but none of the sensors work, then it just dies completely. To get it to remotely work again, I have to unplug the battery then replug it in, but it will not stay on long. The batteries are still good, (trust me, I spent $600 on a brand new battery and it's still doing that), they're fully charged, the voltage is fine, and so far the shop that did the conversions have found nothing wrong with it and it works PERFECTLY fine when they use it, but it immediately starts doing it to me when I bring it home. I tend to ride it at max speed, but this has never happened before, and even when it's not max speed it still does it. Is it something wrong with the hub, the motor, the display, the wiring? I need help figuring this out because this trike is my ONLY mode of reliable transportation.

Hi got hitway evoke and the battery sign is up and checked all connections ran through your video any ideas greatly appreciated

3 minutes 38 seconds in and my bike is fixed! Thanks so much!

Really appreciate all your videos! Not sure if you're still replying to videos, but I have a problem I have yet to see a video on. My bike has de-rated itself from 42km/h to 21km/h. Was like that for the first 500km as well. Then like a flip of a switch back to how it was. I don't know how I got it to go fast the first time, it just kind of did it on its own. Messed with display settings to try and get it back with no luck. Controller, display and motor inside all look good to me. Any ideas?

i received a new battery which was too big and the bike shop had to move the thing the battery plugs into and now when i switch it on the lcd will light up and go off but generally if i switch the battery off and on again it will light up and its powered up sometimes i have to do this multiple times before it powers up. Do you guys know what the problem is? Could it be the prongs arent lining up right? Any advice will be very much appreciated...

I adjusted the brakes on mine, took up the free play on the levers with an allen key, and unwittingly activated the cut off to the motor !!!! When you pull the brake lever, it cuts power to the motor for safety, by adjusting the brakes a little too much, the cut off switch was permanently engaged. Just backed it off a little and all was fine.

I have a 2019 Giant Trance electric. It suddenly wont turn off. I’ve removed the battery and checked the fittings but still having the issue. Any idea? Thanks!

One of the contact points on my cradle is mostly burned away with even the plastic surrounding it being deformed. Is it possible to buy a new contact point or if not, perhaps just the cradle itself? Thanks

Hello all Have got this mountain bike with and e conversion kit on it and having no joy solving the power problem have had all the silver box checked and all power is still live from there and the battery just not powering up, my lad said when he reconnected the reds it give of a lil spark, any help will be greatly appreciated. Have just tryed to test any power going to it with a pen tester and there not power at all? Help.

Hi Johnny I've got a Cyrusher Ranger, great bike but pedal assist has stopped working. The bike rides well on the throttle and cuts out when I pull the brakes, so thats OK but just doesn't put any power assists down when I start pedalling, I wonder if you have any idea what that could be? Thankyou Sandy

Is it easy to change a hail long 20ahn cradle replacement ! Got same connectors only worry about connecting to main line power lines got one red wire and the normal black red connector ! For BAFANG 1400 watt midrive BBSHD Same as the original it came with ! If possible what is the red one with no connector please ,do I rewire the red one the others have connectors ? Thank you !

I have a small electric bike that is brand new that will not turn on unless it is hooked up to the charger. When I have it plugged in it will turn on and it shows a full battery and horn honks but no throttle. When unplugged nothing will turn on. Totally dead. Any advice??

I have a yose power with an error 09 and have replaced the display still the same. I’m going to wait until weekend until I start breaking down the kit.

My electric xp 3.0 keeps shutting off, what's the problem

Hello, I have no idea what it could be, but my fat bike (ouxie v8) is working perfectly, charges well and everything works, etc. until the battery drops below a certain percentage, approximately after 15 km of riding, then it still shows on my screen It seems to have around 46 volt output, but as soon as the support starts working it cuts out after a second and the lights that indicate how full the battery is no longer work, I have never actually had this problem but it came out of nowhere. Do you know if something like this can be solved and if you have any tips, that would be great!

i have a skylark so i don’t think i can remove the battery but everytime i try to twist the gear to go forward, it works for 1 second then stops. What do i do about that? thanks !

Johnny NerdOut thanks for your tips!! My ebike stopped working after a 5 mile ride. Frustrating for sure! I reached out to Ancheer and they wanted me to unplug the handle bar wire, Sensor wire, brake lever wire, from the control box. I am lost in what they want me to do. Can you make a short video or explain what they are wanting me to do? I'm no expert and these wires all look the same. Everything on my bike powers on but my bike will not go into power mode after pedaling. Even though the meter is on, my Ancheer is not responding. Please help. Thanks!

Can I ask about the k800 fat bike? I just swapped out the display because the other one. The screen was half burnt out. It's the M5 e bike works with the old display as soon as I put on the new display the bike does nothing. I've adjusted the setting and still nothing what am I doing wrong

Great video. Hi I'm Lg. . I have a Haoqi H1000. My voltmeter says 52 but the button on the battery that shows how much power high and low is not working ... Is the battery good but that power light stopping the bike from getting power. Please any suggestions

johnny I need help, i have a new battery that wont work but the old one still does. Bought from alibaba it puts out correct voltage and polarity is right, still cant get it to power on bike.

Please help me, is the DC converter needed to turn on the bike? they send me 2 new controllers and a battery but still it doesnt turn on, what should i check more? one night i put it in the garage and the other day it never turned on again...only part that hasnt been replaced is the dc converter, cables seem fine, and what about the motor? i tried your battery trick and everything else..

yes Johnny, Id like to speak too you about my e-bike, the motor isn't turning the wheel, it's sounds like it's missing a gear! any help would be appreciated, as the e bike is my mode of transportation!

I have a Phantomgogo R1 36v scooter. When I tested the 5v red wire coming out of the controller I found that the 5 volt Red Wire is pushing 17.44 volts. I am afraid of connectiing the.controller to the throttle because I do not want to damage the throttle. Is this high voltage normal or is it a defect? Will it destroy my throttle?

What if the key lock component is housed separately such that when the top cover four screws are removed, the key lock component is residing in a separate compartment housed in plastic cover adjacent to the main plastic casing? And battery is slided into the battery holder bracket of the ebike?

Hi Johny, I have e-bike. Flyer Uproc7 I can't figure out what could be wrong. I have the battery fully charged the wires have been checked and the display shows me that the battery is empty and in red. It shows me one error 67-32 according to the service book. I don't know what to do? Can you help me??? All assist functions are in OFF mode.

Great video! I disconnected brake, the ebike works again. How can I fix the brake control? Do I really need it? Thank you!

I have a problem with headlights can be brushless? All contacts and connections are ok cables no damages

hello. my nakto camel 250w 36v bike has a good battery 41 volts as shown on ohm meter, and shows full charge on throttle lights. once i go to ride it will start to run down quickly. then it will cut out. once i turn the key off and back on it does fine but then will cut out again. could it be a bad battery but still read 41 volts? or coud it be another issue? the bike is 2019 and hasnt been rode much, but also was not charged regularly as it should have been. thanks for any help. i just bought a pair of these bikes from elderly couple on marketplace. whats weird is that they are both the same model but have different battery pack sizes. one bike is older than the other. both bikes read 41 volts and the other bike does fine, but the older bike (2019)model is the one with issue. im new to ebikes and i know nothing about them. very sad that i have trouble before i can enjoy the bikes

I have an Ancheer and the power will shut off suddenly with a full charge. If I leave it alone for a couple hours all the power comes back on. Is it the controller or battery?

I have a rear motor on my ebike. I was riding and my brake line to the back wheel snapped at the lever, then the motor stopped working. I'm going to try what you said about disconnecting break cutoffs and see if that fixes the problem... will report back...

Our ebike battery measured across pin outputs show only .996v instead of 52v, what is the issue? Thanks

My wire burst short circuit and try to reconnect the fine 5 wires but it didn't have power. What shall I do . Does it have fuses somewhere . My Bafang display is C965

Hi I have an AOSTIRMOTOR so7 and have an error 30 code now, checked everything and still won't work, I know the speed sensor is messed up but the bike was working still with that cutting on and off at times, but man 4 days now and I cant figure it out! My only source of transportation too!

Hi , New Subscriber here ! I just acquired a older Giant Twist with a 26 volt front hub motor . It's battery is bad for sure but may have some other issues . Instead of spending $500 on a new 26 v , may I use a 24 or 36 volt battery instead ?

Mine stopped working after a wash 😤 so im assuming the control thing on the handlebar was not fully waterproof. Now it wont turn on but the front light in always ON and i cant turn it off. So i just unplug the display for now to turn off the light but obviously the main concern is i cant turn on the motor..

You are THE MAN! My RADCITY lost power about 5 miles down the trail. Had to hump it back to my car. Spent some time checking it over. (What do I know about ebikes?) Watched this video and where you talked about the brake cutout got my attention since the power failure happened right after I applied the brakes. Went and checked out the rear brake lever and noticed that somehow the throttle cable had got caught in the brake lever opening. Releasing the brake lever was squeezing the throttle cable. Worked it loose and bing-bang-boom. Back in business with full power! Thanks so much. Like to buy you a beer and a good cigar.

great video thanks , bafang 48 volt --1000 watt battery , new motor battery checks out ok ,replaced display ,all connections look good , when i use battery only i can go1-2 miles and display goes blank, i can pedal assist 10-15 miles and all good , as soon as i do battery only 1-2 mile display goes blank again ,no power . thanks for input

I bought an ekxbike x-21 and the motor makes a horrible sound when the throttle is engaged. It sounds like gears grinding Any idea of what would cause this?

Can a prodecotech charger be fixed? Charger worker battery works but little fuse and rubber stopper is missing

Thank you so much for the info !

Thank you so much one of my cables was unhooked

Hey bro I have a sunmono cargo E bike and the pedal assist and throttle have stopped functioning properly they are stop starting do you have any suggestions I have no ideas about ebikes at all

thank you this really helped me

Thank I was having problems today I fixed my popped tire once then went for a ride and bike stopped running I seen ur vid and it was the disk brake then once I fix that I get on n my tire popped again

Thank you, just a little info went a long way.

Was riding bike shut off pit battery back on sparks shot out the bottom piece where the power and ground weld into metal plate popped off is that my problem

My Astro pros hydraulic disc brake sensor got chewed by a puppy. The bike turned on once after that but once powered down it will not come back on you think that sensors the issue.

I’m a poor older (74) guy. I bought an older step though la free bike. It worked fine. All I did was pull up the battery to see what it looked like and then put it back in. Now all 5 red lights blink on the display and nothing else works Any thoughts specific to this bike ?

Thanks for info!! My premium headlight for my rad rover is not working anymore. For some reason it just stopped turning on. I checked all connections but still no luck. Any chance you’ve run into this problem before?

Can you help me? I checked all my connections . My display won't stay on. The bike is brand new out off the box. Think it's just the display needs replaced?

Ok, i know i am seeing this a little late, but my battery is 48volts and it is putting out 58 volts, could this be the issue? Edit: My issue is that every time i try to go a little too fast, or accelerate a little too fast, then the battery fakes being dead, it isn’t actually dead, but my throttle display think it is, i have been having this issue for a few days now and i just cant figure out the problem.

Thank you for replying so quickly, I will show him your reply when he gets in.🙂

Thanks bruv for the thought my battery was a little loose and i pushed it back in and she sparked right up