LCD5 - info 3 error

[EBeginning@Melbourne]

Hi - this is my first ebike - I found it on someones hard rubbish out the front of their house. They had tried to connect all the wires by twisting them and well it was a mess. I have bought a new screen LCD5, wire loom, controller box for a KT hub and I get the same error when ever I apply the throttle or the turn the PAS sensor. OR even try the walking. I have tried a different hub to the one that comes with the bike also and also tried reprogramming the control. It is a 36v battery and it is showing 40volts approx charged on the screen and when I use a multimetre. What would be causing the system to error 3? The only different thing I have not tried is the battery. Any advice would be appreciated - as I said this is my first messing around with ebikes.

 

[harryS]

Have you consulted an LCD5 user manual. I believe Error 3 on your LCD5 is the same as on my LCD3's. It;'s a Hall Sensor error,

It generally means the motor connector has a problem with the six small wires that go between the motor and controller. These are power (red), ground (black),, and hall sensors (yellow, blue, green). Sixth wire , (white) is speed sensor. On a bike that worked, it usually means the motor connector was poorly seated. I've seen it when I forgot to plug the motor back. after changing a rear flat. Also seen it when I spliced a motor cable, and one of the sensor wires broke.

On a bike that is unknown, you could not plugged in the cable right, or have a blown Hall sensor (there are three), or a bad motor cable. I've never had a sensor blow in a motor, but other folks have, usually when the motor spun out the frame and twisted the cable all to heck, causing 36V to contact the low voltage sensor wires. Plugging in a second motor suggests it wasn't the sensors, but maybe the cable?

What kind of motor cable is it? Is it a round 9 pin connector? Or is it three heavy wires with bullets, and a 2x3 white rectangular connector?

You have a new KT controller? How many amps is it, just for curiosity.

 

[EBeginning@Melbourne]

Harry thanks for replying

It is a new hub and a new KT controller and new wires too. I am just confused what is wrong - I get the same error with the old hub wheel too.

I have those 9 pin connector types and I have two of them and both when used result in the same error

 

[EBeginning@Melbourne]

You are right as well it is a hall signal error in the manual

 

[harryS]

There's not much to go wrong then. The 9 pin connector is almost like a standard. I;ve never seen one not match when buying either a controller or a motor,

Those 9 pins can be tough to seat fully, Arrows are aligned? Push the two halves firmly,

Does the KT have a 9 pin cable coming out of it or does it have the three bullets and the 2x3 connector that attaches to the 9 pin cable. Check the 2x3 connector to make sure the pins are firmly snapped into it, so they mate with the other receptacle. SOmetimes a barb gets crushed on the pin, and it doesn't retain well.

 

[EBeginning@Melbourne]

It is the bullet connector types out of the controller and onto the loom. Not much to go wrong - I think I will have to take it to somewhere.

But I will try and crush them together tightly before i do as you say making sure they are lined up perfectly.

 

[harryS]

Take it somewhere where they know enough to plug the hub into a working controller.

 

[daytriker]

I just want to let the people that contribute to this site know how much you have helped. I am not one to usually give up but after 4 or 5 days of trouble shooting my hub motor I was almost at the point of saying screw it! My problems started when the supplier of my complete kit didn't include the brake levers or extension cables. I had asked for them but not a big deal as I always have extras. I started installing a hub motor on a customer's recumbent trike but advised him that he might only get 8 gears on his rear wheel. His preference was for all 11 gears so I switched to installing a Bafang BBS02. Changed over his rear tube & tire & proceeded to make all the connections. As it turned out I was not able to get all of his 11 gears just as I suspected but this is probably due to my disdain for rear derailleurs as well. I advised the customer that in his particular trike he might be happy with the smoother power delivery of the rear hub motor & that 8 gears should be more than adequate. Once again I started switching out his back wheel, removing the BBS02 & installing the new kit for a hub motor. It was at this point that I realized the brake lever connectors were male as were the connectors on the 1 - 4 motor cable. Again, not a huge problem as I have multiple extension cables & luckily had the male to female cables. While connecting everything up, I got a spark from somewhere in the wiring and yes, I had turned the battery OFF. At first I thought that is weird because I am pretty diligent about working in an organized manner. I thought maybe I had a faulty battery switch so removed the battery from its cradle. I contacted the supplier to let them know they may be sending out batteries with faulty ON/OFF switches. They replied that the model Hailong battery I have does not disable the power at the switch, only turns off the battery meter L.E.D.'s. Apparently there are different model Hailong batteries that look identical, have the same switches but one has a fuse & one doesn't. The model with a fuse does not turn off the power at the switch. Continuing on with my install I now couldn't get a good connection. I looked at the fuse & it looked fine. Still no connection on the LCD5. I changed to a new fuse & voila, we have Power Scotty! I Removed the battery & proceeded to route the wiring making the new connections with the extension cables, zip tying everything in to place. Turn on the LCD Display & get a Code 3 error. I figure I must have made a wrong connection so start checking the cables again for an incorrect pairing. Nothing changes. I decide to disconnect everything, cut all the zip ties off & start again. This time the LCD lights up but I cannot get any reaction from the throttle or the brake lever interrupters. This is after about day 4 of installing this possessed kit! I finally get a Code 3 error again & as a last ditch effort before shooting this kit, I decide to check on this forum & the one thing I hadn't checked someone had posted - "The 9 pin connectors can be difficult to fully connect." and that is exactly what the problem was. A partial connection at the motor cable. To you sir, I owe you a mountain of beer in Mexico along with my gratitude. Thank you.