Raleigh Array e-bike repair or upgrade - fault code 34


New member
Local time
12:56 PM
Aug 6, 2022
Hi All,

I have a Raleigh Array e-bike that I brought to commute to work. I bought it the week before the Covid lockdown started, and only returned to the office a couple of weeks ago. So although I've owned it for over two years (so out of warranty), I've only used it about a dozen times total.

I charged it on Tuesday after returning home from work. After charging, it now displays a fault code 34 (Batter voltage error), and refuses to work normally. I've measured the voltage, its showing 41.3v across the main pins on the battery. There are 3 other wired pins in the battery connector, each at different voltages (25.8, 3 and 0). I have no idea what these pins are for, but google suggests that 41.3v is normal for a fully charged 36v battery.

The owners manual suggests I might need a new battery, but I'm suspecting it might be a problem with the controller, rather than the battery.
From my research, the electrical parts are Suntour. I don't really want to take a gamble on either a new battery or controller if I can help it. Both are expensive.

I'm wondering whether it might be do-able and a lot cheaper to replace the controller with an aftermarket one.

I'm hoping to get some advice from you guys, either on repair or upgrade options.

What would I need to know in order to find a suitable controller, that's compatible with the motor?

Many thanks in advance for any help you can give me.
Top Bottom