Help! Electric Avenue help please

[Happy when cycling]

Hi all, i’m new to forums and hope i’m not asking too simpler a question which has already been answered?
both myself & my mrs have muddyfox electric avenue bikes, both 3 yrs old. The screens on both went faulty at similar times, my bike fell & not sure why my mrs bike stopped, but no display & nothing working. Batteries were both fine. I tried to buy new ones but nothing i bought worked. I read on pedelecs that oem only & someone had a similar issue & had to replace both controller & display at same time.
i purchased a kt controller 36/48V KT-15A Ebike Bicycle 6Mos Waterproof Controller For 250W & kt lcd5.
i have fitted the items and power up was fine. The walk assist works but i am not getting any PAS.

I saw one post which said that a 12 magnet wheel speed pulse signal could be an issue & to remove alternate magnets to reduce to 6, i have done this but still nothing.
I don’t know what the motor is but it said on purchase it was 250w
i have downloaded to p & c settings, i tried various setting changes but had to reset to factory settings as was getting nowhere. A lot seemed gobbledegook but obviously mean a great deal to those in the know!

Any help here would be most appreciate.

 

[Nealh]

If PAS doesn't work then there can be a few reasons.
1. Wrong PAS setting in C1.
2. PAS not fitted correctly.
2. Incorrect wire sequence.
3. Connected to throttle connection at controller.

We need to know which PAS you have and type of connector.
Once we know which PAS you have , then C1 can be set .

A pic of the PAS and wire connection may also help us.

 

[Happy when cycling]

Being very thick, what does a PAS look like?

 

[Nealh]

PAS = Pedal Assist Sensor.
It is located at the Bottom Bracket and can be on the LHS or RHS.

You have the two piece type which consists of the magnet disc and a wired sensor which the magnets pass by.
The magnets in the disc pass the sensor head and sends a signal, the gap between magnets and sensor head needs to be very close like 1mm. One may see a small Red led at the sensor it will flick on and off as the magnets pass the sensor.

Typical PAS sensor and disc.

 

[Happy when cycling]

Just looked at online images, is it the item with the magnets on around the pedal crank? This is the item which it mentioned about taking alternate magnets out as kt only likes up to 10. So i’ve removed as suggested

 

[Happy when cycling]

It has a julet connection

 

[Nealh]

Set C1 /1 see if the Led flicks on /off as the magnets pass, try refitting all magnets and set C1/3.
If the LED flicks on/off then a signal is being received.
If LED doesn't flick on/off then the PAS Julet wire sequence isn't compatible with the KT.

If no LED one has two choices:
1. Buy a KT PAS with compatible wire sequence.
2. Cut both connectors off and solder the wires and cover with heat shrink.
With #2 one joins Blk to Blk (Gnd) , Red to Red(5v) and the third colour (Signal)to each other.
#1 is the neater option.

 

[Nealh]

We always advise if changing controller make, then to buy the peripherals that go with them as a kit esp when julets are involved because one can't see the wire colours at the pin . Peripherals like PAS, speed control device are cheap to buy with the kit.
A lot of us if mixing matching use SM connectors.

 

[Nealh]

Typical P settings are:
P1/87. P2/1. P3/1. P4/1. P5/12

Typical C settings though C1 may need tweaking !
C1 is dependent on PAS used but your type 01/02 or 03 will prevail.
C2/0.
C3/0 which is PAS assist 0. 1 - 5 indicates the PAS assist auto selected at start up.
C3/8 will select the last PAS assist used.
C4/0. If no speed control (throttle) used.
C5/10. C6/any. C7/0. C8/0. C9/0. C10/N. C11/0. C12/4. C13/0.
C14/2 or 3. C15/6.

Typically the C setting that causes issues is C1. C1 is very dependent on the PAS used.
C4 /3 & P4/1 should both be set if one wants a legal speed device(throttle).
It means it is only activated if the one pedal firsts.

 

[Happy when cycling]

Thank you, i will try this tomorrow as late for a party. I may just order one in any case

 

[Nealh]

P1/87 should mean if the hub motor gearing is fairly std at 4:4:1 then the hub should stop assisting at 15.5mph. One can check the display speed with a GPS when riding.
If speed reading is low raise the P1 value and vice versa.

 

[Nealh]

Thank you, i will try this tomorrow as late for a party. I may just order one in any case

It must be a KT PAS sensor .

 

[saneagle]

It has a julet connection

Non-KT pedal sensors with Julet connectors nearly always give problems when connected to KT controllers. Some have the wrong connection sequence and some just don't want to work. A guaranteed solution is to buy a KT pedal sensor. Alternatively, you could try cutting the cable and rejoining in the other two combinations.

When you buy any replacement controller, you should always buy a throttle for testing. A throttle is legal with a KT controller when you set p4=1 and C4=3.