BBS02 ERROR CODE 30 - help needed

MrMark

Pedelecer
Dec 31, 2018
47
2
#1
Ysterday after a fiew minutes of riding I got an error 30 on the display and the motor cut off.



I have checked all wiring harness and connectors for damage or bent pins.

I have unbpluged all sensors.

I have removed the controller and fited it again.

The result is that nothing has changed.

When I turn on the motor goes for a fiew seconds and cuts off with error 30 on a dispaly.

I did not fit throtle at all.



Please advise me what else can I do.
 

Woosh

Trade Member
May 19, 2012
9,764
1,795
Southend on Sea
wooshbikes.co.uk
#2
6 things can cause error 30: throttle, brake sensors, speed sensor, LCD, 1-4 trunk cable, controller.
try unplugging one item at a time. When you get to the last 3, you'll need help of a friend who has the same kit.
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
450
125
Basildon
#3
The problem could be anywhere or everywhere in your electric system, so we have to use a bit of reasoning, judgement and analysis to get to the cause. Without additional information, there is virtually no chance of solving your issue.

Electric problems very rarely just appear by chance, so you need to think back to what changed just before the problem started, like a crash or bike fell over, a wet journey, an abnormal load on the motor, maintenace, and things like that.

Have a particular look at cable routing. Did you stress any cables? Did you pull the zip ties too tight?
 

MrMark

Pedelecer
Dec 31, 2018
47
2
#4
The problem is I don't know anyone with bafang motor in my area :/

Cables look just fine.

Is here anyone from Liverpool?

Day before I was riding in a wet condition but the motor worked fine as usual.
I have used special gel to protect cable connections. Bud ends from battery cable were treated with liquid tape.



Problem appeared after about 30minutes of normal ride.
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
450
125
Basildon
#5
How old is the motor? Most BBS01 and 02 are not waterproof, though the B version is better thanthe A. Do you have a throttle?
 
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MrMark

Pedelecer
Dec 31, 2018
47
2
#6
I have it only for three moths. Well I heard that they are quite waterproof...
The controller was dry inside.
I did not use a throttle
 
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minexplorer

Esteemed Pedelecer
Aug 22, 2017
400
46
50
Four Lanes,Cornwall
#7
I have it only for three moths. Well I heard that they are quite waterproof...
The controller was dry inside.
I did not use a throttle
Did not use the throttle but still had it fitted in place? or did not fit it but left the cable end uncapped? if rain gets into the throttle and you havent opened it and sealed the wires to the hall sensor with some silicone. or rain gets in the open end of the cable....these scenarios many, inc me have suffered controller damage.
 

MrMark

Pedelecer
Dec 31, 2018
47
2
#8
I did not fit a throttle and a cable end was cupped and properly sealed. I have plugged in throttle for a test and it was working for a few seconds until the error appeared again and the motor cut off.
 

jarob10

Pedelecer
Jan 22, 2017
114
20
46
Uk
#9
Ysterday after a fiew minutes of riding I got an error 30 on the display and the motor cut off.



I have checked all wiring harness and connectors for damage or bent pins.

I have unbpluged all sensors.

I have removed the controller and fited it again.

The result is that nothing has changed.

When I turn on the motor goes for a fiew seconds and cuts off with error 30 on a dispaly.

I did not fit throtle at all.



Please advise me what else can I do.
Any signs of life with brakes & speed sensor disconnected?
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
6,833
345
55
West Sx RH
#10
30 is comms so simply the issue is a failed LCD, trunk cable or controller has a component failure. Most likely the latter due to damp/moisture.

Simple issues like brakes just throw up and easy 'error 5' to sort out.
If you get 12 before hand then definitely a new controller is required.
 

vfr400

Esteemed Pedelecer
Jun 12, 2011
450
125
Basildon
#11
If you get a problem on the 5V rail, like water in the throttle or blown motor hall sensor in it can take out the whole 5V, which will stop the controller to LCD comms and give code 30. To confirm that, you need to measure the 5v on the throttle connector.

If you have 5V, there's a fair chance that a new controller will fix it. If you don't have 5V, you need to find out why.
 

minexplorer

Esteemed Pedelecer
Aug 22, 2017
400
46
50
Four Lanes,Cornwall
#12
I have used special gel to protect cable connections.
What in the end cap? Is it possible this could cause a short between the pins in the throttle cable, like rain can when uncapped? i mean the pins are kept from touching each other for a reason.When my throttle got wet it caused problems.when i detached it went away. BUT i didnt seal the cable end and more rain then caused damage to the controller shorting the pins.

D8ve on here also had an error 30 and it was the LCD. others have had it caused by the speed sensor faulty.
 
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Fordulike

Esteemed Pedelecer
Feb 26, 2010
3,394
152
Tyne and Wear
#13
Check that the wheel spoke magnet is passing close to the speed sensor
What in the end cap? Is it possible this could cause a short between the pins in the throttle cable, like rain can when uncapped?
I had this issue once, and the symptoms were that the motor ran at max. After drying out the throttle connector, the problem resolved itself, but it took me a while to figure out it was due to a drop of water inside the connector.
D8ve on here also had an error 30 and it was the LCD. others have had it caused by the speed sensor faulty.
Might be worth checking the speed sensor magnet is passing close enough to the sensor.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
6,833
345
55
West Sx RH
#14
In the past if a speed signal/sensor error, 21 is the only error I have seen.
 

minexplorer

Esteemed Pedelecer
Aug 22, 2017
400
46
50
Four Lanes,Cornwall
#15
Ysterday after a fiew minutes of riding I got an error 30 on the display and the motor cut off.



I have checked all wiring harness and connectors for damage or bent pins.

I have unbpluged all sensors.

I have removed the controller and fited it again.

The result is that nothing has changed.

When I turn on the motor goes for a fiew seconds and cuts off with error 30 on a dispaly.

I did not fit throtle at all.



Please advise me what else can I do.
How are you getting on mark.has any of the advice enabled u to get to the bottom of the problem yet.
 

Nealh

Esteemed Pedelecer
Aug 7, 2014
6,833
345
55
West Sx RH
#16
Error 30 via speed sensor will only occur if the 5v is compromised by moisture.
 

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