Pedal assist not working

[jbenn43457]

Hi, I fitted my wife's bike with a front wheel kit, about 7 years ago. It's 36v, controller is kt36zwsrjdf01r. The kit came with a left side pas, its got hollowtec 2 cranks so I had to bodge the magnetic ring on. Its always been a bit vulnerable so I want to move the pas to the right side and have the magnetic ring on the chainring. First time I moved the original pas and the motor only worked when peddling backwards. I bought a rhs pas, which won't work at all. I've got 4.5v at the connector. Someone said I'd have to alter the settings, but the display won't go to the c settings. Should I get a different display, if so, which one? Many thanks

 

[thelarkbox]

Have you tried flipping the magnet disk side facing the sensor?

Otherwise a pas cadence sensor is a pretty generic item so ebay/aliexpress etc for options so you can pick any that suits your bike/preferences. just pay attention to the connector type used to make the 3x connections.

Edit.. Just noticed the KT prefix on your controller label/id. if your as using a lcd display google for he 20+page pdf manual detailing the config settings.. (eg ktlcd-03)
iirc here are 5x options and my manual version went full on chenglish confusing me so i just tried each option until it worked.. - Worth checking before buying a new sensor..

 

[jbenn43457]

Have you tried flipping the magnet disk side facing the sensor?

Otherwise a pas cadence sensor is a pretty generic item so ebay/aliexpress etc for options so you can pick any that suits your bike/preferences. just pay attention to the connector type used to make the 3x connections.

Edit.. Just noticed the KT prefix on your controller label/id. if your as using a lcd display google for he 20+page pdf manual detailing the config settings.. (eg ktlcd-03)
iirc here are 5x options and my manual version went full on chenglish confusing me so i just tried each option until it worked.. - Worth checking before buying a new sensor..

Hi, I've got a couple of pas and have tried the magnetic ring all ways. I believe I need to get into the c settings menu, but my display won't do it. I'm asking for reccomendations for another suitable display I guess

 

[thelarkbox]

There are a number of ktlcd displays as well as some 'dumb' led displays, The ktlcd-03 is popular, i use a ktlcd-10 (very similar), afaik any lcd display will give you access to the config parameters, but a quick google for the relevant pdf manual should confirm if in doubt before buying a more esoteric option..

with both the v3 and V10 you can use the lcd display with a null modem connection to a 'dumb' led display to transfer the configuration ..

topbikekit is a frequently referenced chinese seller, and other aution sites/shopping portals will probably have options.. post links of items under consideration if you want confirmation any are ok..

be mindful to select the correct plug termination type.

 

[saneagle]

Hi, I fitted my wife's bike with a front wheel kit, about 7 years ago. It's 36v, controller is kt36zwsrjdf01r. The kit came with a left side pas, its got hollowtec 2 cranks so I had to bodge the magnetic ring on. Its always been a bit vulnerable so I want to move the pas to the right side and have the magnetic ring on the chainring. First time I moved the original pas and the motor only worked when peddling backwards. I bought a rhs pas, which won't work at all. I've got 4.5v at the connector. Someone said I'd have to alter the settings, but the display won't go to the c settings. Should I get a different display, if so, which one? Many thanks

You can use any of the KT LCDs except LCD1, which is, I guess ,the one you have. The 12 magnet pedal sensors are often handed, so you can't change sides unless you want to pedal backwards. If I were you. I'd get an 8-magnet pedal sensor, as they give the least problems and they're cheaper, and I challenge anybody to see the difference in a blindfold test. You should also get a throttle if you don't already have one and set P4=1, C4=3 to make it legal as a power boost.

 

[Nealh]

Hi, I fitted my wife's bike with a front wheel kit, about 7 years ago. It's 36v, controller is kt36zwsrjdf01r. The kit came with a left side pas, its got hollowtec 2 cranks so I had to bodge the magnetic ring on. Its always been a bit vulnerable so I want to move the pas to the right side and have the magnetic ring on the chainring. First time I moved the original pas and the motor only worked when peddling backwards. I bought a rhs pas, which won't work at all. I've got 4.5v at the connector. Someone said I'd have to alter the settings, but the display won't go to the c settings. Should I get a different display, if so, which one? Many thanks

If PAS works in back pedal mode then one simply needs to flip the mag disc face over , magnets as one likely knows have a N or S face .