Ecotric FAT26S900 User manual

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TABLE OF CONTENTS
Carton Contents................................................................................................................................................................- 1 -
WARNING..........................................................................................................................................................................- 3 -
Assembling Instruction..................................................................................................................................................... - 4 -
Front Wheel Installation...........................................................................................................................................- 4 -
Handle Bar,Display and Front Reflector Installation................................................................................................ - 6 -
Seat Post Installation................................................................................................................................................ - 7 -
Pedals Installation.....................................................................................................................................................- 8 -
Battery Installation & Removing & Charging........................................................................................................... - 9 -
Testing The Bike...................................................................................................................................................... - 10 -
Display Instrument Setting............................................................................................................................................. - 12 -
Presentation of Screen........................................................................................................................................... - 12 -
Display Setting........................................................................................................................................................ - 12 -
Display Advanced Setting....................................................................................................................................... - 13 -
Troubleshooting..............................................................................................................................................................- 14 -
The display can not be lighted up.......................................................................................................................... - 14 -
The throttle does not work.................................................................................................................................... - 15 -
Error Codes............................................................................................................................................................. - 16 -
Warranty Information.....................................................................................................................................................- 17 -
Situations that is not covered by warranty............................................................................................................ - 17 -
18 months Limited Warranty Components............................................................................................................- 17 -
Consumables.......................................................................................................................................................... - 17 -
Return Policy...................................................................................................................................................................- 18 -
FAQ..................................................................................................................................................................................- 19 -
Q: How does after-sale customer service/ warranty work?..................................................................................- 19 -
Q: I'm tech inclined and think I can fix it myself,does that void the warranty if I do?..........................................- 19 -
Q:Why the charger is hot?......................................................................................................................................- 19 -
Q:What is the range of this bike?...........................................................................................................................- 19 -
Q: Can I ride the bike in rain?.................................................................................................................................- 19 -
Q: What is the most important thing for maintaining battery.............................................................................. - 19 -
Q: Do you have spare keys for the E-bike?.............................................................................................................- 19 -
Battery And Charger Care...............................................................................................................................................- 20 -
Simple Maintenance Tips............................................................................................................................................... - 21 -
Safety.............................................................................................................................................................................. - 22 -
General Warning.............................................................................................................................................................- 23 -
The Universal Wiring Diagram........................................................................................................................................- 24 -
Recording Your Ecotric Bike Info.....................................................................................................................................- 24 -
Carton Contents
(x1) ECOTRIC Bike
(x1) Lithium Ion Battery
(x1) Battery Charger
(x1) Kit Box
(x2) Pedals
(x1) Saddle
(x2) Keys
(x1) Tool Kit
(x1) Reflector
(x1) Owner’s user Manual

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First of all, we would like to thank you for choosing the ECOTRIC electric bike. We
believe this technology, with the benefits of electric propulsion, provides you with the
perfect vehicle to increase your personal mobility.
Our brush-less electric hub motor allows you to run errands
or commute to work while saving money on gas and reducing your environmental
impact on our world. It also gives you the opportunity to pedal if you want to get
exercise along the way.
All this and it is just plain fun to ride!
If you have any concerns, questions or suggestions about the ECOTRIC electric bike,
please contact us at the website where you bought the bike,we will always do our
best to serve you. Again, thanks for choosing ECOTRIC.
PLEASE NOTE:
THIS MANUAL IS NOT INTENDED AS A DETAILED USER, SERVICE, REPAIR OR
MAINTENANCE MANUAL. PLEASE SEEK ASSISTANCE FROM A QUALIFIED
TECHNICIAN FOR SERVICE, REPAIRS OR MAINTENANCE.

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WARNING
Electric Bikes can be dangerous to use. The user or consumer assumes
all risk of personal injuries, damage, or failure of the bicycle or system and all other
losses or damages to themselves and others and to any property arising as a result of
using the bicycle.
As with all mechanical components, the bicycle is subjected to wear and high
stresses. Different materials and components may react to
wear or stress fatigue in different ways. If the design life of a component has been
exceeded, it may suddenly fail possibly causing injuries to the rider. Any form of crack,
scratches or change of coloring in highly stressed areas indicate that the life of the
component has been reached and it should be replaced.
For replacement parts, technical information and warranty assistance, please feel
free contact us.
YOUR INSURANCE POLICIES MAY NOT PROVIDE
COVERAGE FOR ACCIDENTS INVOLVING THE USE OF
THIS BICYCLE. TO DETERMINE IF COVERAGE IS
PROVIDED YOU SHOULD CONTACT YOUR INSURANCE
COMPANY OR AGENT.

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Assembling Instruction
Front Wheel Installation
CAUTION: Your Electric bike is equipped with a front disk brake. Be careful not to damage the disk,
caliper or brake pads when reinserting the disk into the caliper. Never activate a disk brake’s control
lever unless the disk is correctly inserted in the caliper.
(1) Carefully take your bike out of the carton and gently rest it in place with the kickstand
down(Figure.1-1).
(2) Remove all of the inside cardboard protection and bubble wrap on the bike.
(3) Please locate and set aside the kit box containing the battery charger, pedals, and tool kit etc.
(4) Remove the rubber pad and metal block from the front wheel and front fork(Figure.1-2)
(5) The fork is curved,please make sure the concave of the fork facing forward(Figure.1-3)

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(6) With the steering fork facing forward, insert the front wheel between the fork blades so that
the axle seats firmly at the top of the fork dropouts. (Figure. 1-4)
(7) While pushing the wheel firmly to the top of the slots in the fork dropouts, and at the same
time centering the wheel rim in the fork.
(8) With a cam action system, move the cam lever upwards and swing it into the CLOSED position
(Figure. 1-5). The lever should now be parallel to the fork blade and curved toward the front wheel.
To apply enough clamping force, you should have to wrap your fingers around the fork blade for
leverage, and the lever should leave a clear imprint in the palm of your hand.
Please Note: If, on a traditional cam action system, the lever cannot be pushed all the way to a
position parallel to the fork blade, return the lever to the OPEN position. Then turn the tension
adjusting nut counterclockwise one quarter turn and try tightening the lever again.
WARNING: Securely clamping the wheel with a cam action retention device takes considerable
force. If you can fully close the cam lever without wrapping your fingers around the fork blade for
leverage, the lever does not leave a clear imprint in the palm of your hand, and the serrations on
the wheel fastener do not emboss the surfaces of the dropouts, the tension is insufficient. Open
the lever; turn the tension adjusting nut clockwise a quarter turn; then try again.
Spin the wheel to make sure that it is centered in the frame and clears the brake pads; then
squeeze the brake lever and make sure that the brakes are operating correctly.

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Handle Bar,Display and Front Reflector Installation
1. Loose the bolt on top of the stem,then Rotate the stem through 90 degrees(Figure.2-1)
2. Unscrew the 4 screws in front of the stem with 5mm hexagonal spanner,place the handle
bar on the stem,tighten the 4 screws slightly and position the handlebars to your desired
comfort level,then tighten four bolts in turn until full tightened (Figure. 2-2)
Please Note: Before installing the handle bar,please pay attention to the wires harness that
connect to it,please make sure the wire harness are not twined together. (Figure.
2-3)
3. Once the handlebars are aligned and the top bolt is slightly secured, tighten the 2 side bolts on
the stem with 6mm hexagonal spanner firmly(Figure. 2-4). After tightening the 2 side bolts,tighten
the top bolt with 5mm hexagonal spanner firmly (Figure. 2-5). After all 3 bolts have been securely
fastened, make sure there is no play in the headset.
4. Unscrew the 2 screws on the display,then install the display on the center of the handle
bar(Figure 2-6);unscrew the bolt on the front of the fork,then install front reflector
Install instruction on YouTube: https://youtu.be/AdTEu5iVJZA
WARNING:
Do not over tighten the stem bolt. Over tightening the stem bolt can damage the steering
system and cause loss of control.

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Seat Post Installation
1. Please pay attention to the vertical lines on the seat post,it is the minimum insert line or safety
line,please make sure the post is installed into the frame deeper than the minimum insertion line.it is
at the bottom of the seat post(Figure. 3-1)
Warning: It could break the seat tube during riding if the seat post does not installing correctly.It is not
covered by warranty.
2. Un-clamp the clamp on the seat tube,insert the seat post into the seat tube,adjusting the seat to a
comfortable height,tighten the tension adjusting nut,then press the clamp lever inward toward the seat
tube(Figure. 3-2).
Please Note: If necessary, tighten the clamp by twisting the clamp handle clockwise while in the
un-clamped position. Then, fold the handle in toward the seat post. This should require a fair
amount of force to ensure the seat post is held tight. If necessary, the clamp can be further
tightened with a 5 mm Allen wrench while in the clamped position.

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Pedals Installation
1. Identify left vs right pedal
There is a “L” or "R” stamped into the axle (threaded part that looks like a screw) (Figure. 4-1)
Please Note: They are not the same!! Apply a small amount of grease if possible
2. Install the left hand pedal firstly
You will have to screw it in counter-clockwise because the threading is the reverse of a normal
screw.Do this by slowly pedaling the cranks backwards.If the pedal feels stiff stop and then re-try, it
should feel like a smooth motion.Do not use the wrench until you are ready to tighten it for the
final few turns. Tighten it down until you can't anymore.(Figure. 4-2)
Please Note: Hand tight is not sufficient. Use a tool. If after riding,the threads on your crank is
stripped.you have not followed these instructions. Your crank needs replacing (this is NOT covered
by warranty).
3. Install the right hand pedal
this one threads in clockwise, like a normal screw. Follow the same principals as discussed in step 2
for the left pedal.(Figure. 4-3)
4. Wipe off any excess grease from around the crank.
TORQUE SPECIFICATIONS

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Battery Installation & Removing & Charging
1. Battery Installation
Turn the key(normally the keys are tied on the clamp of seat tube) to unlock position (Figure.
5-1 ),Line up the grooves on the battery and battery holder(Figure. 5-2),then slide the battery
down,turn the key to lock position(Figure. 5-3) and remove the key.
Please Note: the function of lock is used to for locking the battery on frame only
2. Battery Removing
Do the same thing when installing but in inverse order.
3. Battery Charging
Finding the charging port on the battery (Figure. 5-4),connect the charger’s plug to the battery
charging port ,then connect the other side plug to the AC outlet(110v-240v).The LED on the
charger is red color when charging,it will turn to green color when the battery is full charged. it will
be 6-8 hours for full charging the battery. Remember to full charging the battery before first riding.
Please Note: There is a small button on the battery,press and hold the small button,you can see
the remaining capacity of the battery (It is 1 red light + 3 green lights when full charged) (Figure.
5-5).

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Testing The Bike
1. Lighting Up The Display
Turn the key to lock position,make sure the battery is locked firmly on the frame,then press the “M”
button on the handle bar and hold 3 seconds(Figure. 6-1),the display will be lighted up.
2. Testing The Throttle,Pedal Assist And Walk Assist Mode
The bike has 3 modes: throttle,pedal assist,walk assist. Please lift the rear wheel up,then test them
separately.
Please Note: please make sure the the number of the PAS level is bigger than “1” (Figure. 6-2) , “0”
means no throttle or pedal assist.
A. Throttle: please twist the throttle,it is on the right side of the handle bar(Figure. 6-3).
B. Pedal Assist: please lift up the rear wheel and turn the pedal by hand,the motor will work one time
once you turn the crank 3/4-cycle (Figure. 6-4).
C. Walk assist: Please press the “down” button on the handle bar,the bike will go into pedal assist
mode (Figure. 6-5).

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3. Testing The Brake System
Please hold the 2 brake levers on both side of the handle bar,then trying push the bike forward to make
sure the bike is assembled firmly,and brakes can stop the bike properly. Please Note: You can adjust
the tightness of the brake cable lightly by adjust the the knobs on the caliper (Figure. 6-6).
4. Please note the bike’s serial number(Figure. 6-7) and battery serial number(Figure. 6-8) on the
last page of user manual in case of stolen or missing.
5. You are ready for riding!

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Display Instrument Setting
Presentation of Screen
Speed: Average SPEED/MAX SPEED
Speed unit: KMH/MPH
Battery level: 5 levels, voltage interval could be customized
Head light icon : indicates when head light and back light are on (No headlight function for this bike).
Error code : ERROR and code when there is error
Assist level : actual assist level 0~5, 0 –no assist, 1- ECO, 2,3-STD, 4,5-POWER
Distance: TRIP/ODO
6km mode
To turn the unit on, press and hold the “M” button to light up the display. A long press again
“M” will switch it off. The display switches off automatically if there is no activity for five
minutes (default).
Display Setting
Short press M button to switch ODO/Trip.
Short press up or down button to change assist level, default value is level 1
Long press down button to enter walk assist mode, “walk” will show up on screen

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Display Advanced Setting
Long Press and hold the up and down button for seconds to enter the setup interface, short press
up or down button to change the value, short press M button to save current value and switch to
next parameter.
P01: Backlight, press up or down button to change the brightness (range is 1 to 3)
P02: Speed unit, press up or down button to change between MPH and KMH.
P03: Voltage, press up or down button to change the voltage 24v/36v/48v. Please don’t
change the default value.
P04: Sleep time interval setting,Press up or down button to change the time, range from
0 to 60 minutes. Display will sleep and cut off power after no operation on system for the
selected time, the default value is 5 minutes.
P05: Assist level, Press up or down button to change the level between 0(max level=3) and
1(max level=5) and 2(max level=9)
P06: Wheel size,Press up or down button to change wheel size. Please don’t change the
default value.
P07: Speed limit,Short press up or down button to set the speed limit from 15 to 45km/h
(“45” means no limit)
P11: Reset all parameters,Long press up button 5 seconds, when displays “ssss”, all
parameters reset to default values (except for the ODO distance)

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Troubleshooting
We full understand your feelings when you meet a problem with the bike,the best and fastest
way for solving your problem is that: contact us on the website where you bought the bike,and
tell us your problem in details,it is the best if you can send us some clear pics or make a video
to show your problem.Every message will be replied in one business day.
The following are some assist tips for electrical problems:
The display can not be lighted up
Please full charging the battery(6-8 hours),the LED on the charger should be green color when the
battery is full charged.
If still not work,please check the wires and battery,please make sure the connections are no loose
and the battery is installed in place,then please light up the display in correct order(light up the
power button on the battery,then press the “M” button and hold 3 seconds).
If still not work,we need to get a voltmeter,and do some testing:
First,please light up the power button,then test the battery output voltage(figure 7-1).If the voltage
is “0”,it means there is something wrong with battery output plug,cell or fuse,please take a picture
or make a video to show your testing result ,then send it to us .The customer service department
will give you a solution;if the battery voltage is not “0”,but less than 32V,please full charge the
battery (6-8 hours),then test it again; if the battery voltage is between 32v-42v,but the display can
not be light up,it means the battery is good, we need test the other 2 plugs.
Second,please open the controller box,and find the power wire(it is black and red color) that
connect the battery and controller(figure 7-2). Please test the voltage of the power wire,if it is “0”,it
means the power wire need to replaced,please take pictures,and send the pics to us.If the voltage
is same as the battery,it means the power wires is good,we need to test the output voltage of the
controller,it is the plug that connect the controller and display,it has 5 wires on the plug,please test
the red and black wires(figure 7-3).If the voltage is “0”,it means the controller need to be
replaced,please take some pictures and send them to us;if the voltage is same as the battery,it
means the display need to be replaced.Please picture the testing results and send them to us,it will
help us for solving your problem asap.
We have video on YouTube: https://www.youtube.com/watch?v=zzrkBPsYjrg&t=1s

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The throttle does not work
We mean the display can be lighted up,no error codes,but the throttle does not work. The brakes
have two function when you press the brake lever: 1. it will stop the bike 2.it will cut the power of
motor.
First,please check the brake lever,please make sure the brake lever can be hold or release
fluently.if not,maybe the brake cut the power,please video your problem and send it to us.We will
give you a solution.
Second,please make sure the number behind “PAS” is bigger “0”,if the number is “0”,it means no
throttle or no pedal assist.Please test the pedal assist mode (please lift up the rear wheel,then
turn the crank a whole cycle),and walk assist mode(press the “down” button and hold 3 seconds).
if only throttle does not work,it means the throttle need to be replaced.please video your testing
and send the video to us. If none of the 3 modes works,we need to testing the motor wire and
brake sensor.
Third,please find the plug on motor wire(figure 8-1),maybe the connection is loose,please re-plug
it,then restart the bike,then test all 3 modes,if still not work we need to check the brake sensor.
Fourth,please open the controller box(Figure. 8-2),and find the 2 plugs that connect the brake
levers and controller.It is the only 2 plugs that have 2 wires on each plug(Figure. 8-3).Please
disconnect them ,then test all 3 modes again,if they work,it means the brake sensor is
defective,the brake wires need to be replaced.If still not work,it means the controller need to be
replaced,please video your problem,and send the video to us.
If still not work after replace the brake wire or controller,please video how you do the
troubleshooting,and send the video to us.
We have a video on YouTube,the model is different,but the method is the same:
https://youtu.be/i_s9v7mw_zs

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Error Codes
When something goes wrong with system, an error code will flash on the display. Check details
on attached list.
Please note: The motor will stop working in the event of an error. Only when the error is gone,
the motor will work again. Please send us a pic to show the error code,it will help us a lot for solving
your problem as soon as possible.
Error Codes:
Error code
Definition
0
Normal
2
Short circuit protection of motor
3
Controller error
4
Throttle error
5
Motor error
8
Low battery level
9
High battery level
10
Motor hall sensor error
30
UART receive error
0 : Normal
ERROR 02 : The controller or motor need to be replaced.
ERROR 03 : The controller need to be replaced.
ERROR 04 : Turn the throttle to the opposite direction,maybe the throttle does not return to
the original position.If still not solved,the throttle need to be replaced
ERROR 05 : Replace the controller or motor
ERROR 08 : Please full charge the battery until the LED on the charger turns to blue color (6-8
hours);if still not solved,please test the output voltage of the battery,and send us a pic to
show your result.
ERROR 09 : Please test the output voltage of the battery,and send us a pic to show your result.
ERROR 10 : Please find the plug that connect the controller and motor,please re-plug it,maybe
the connection is loose;if still not solved,please video your problem and send your video to
us.
ERROR 30 : Replace the controller or display

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Warranty Information
Warranty covers items that fail when used within their normal operating parameters.This warranty
applies only to the original registered owner of the ECOTRIC bicycle and is not transferable.
Situations that is not covered by warranty
Water Damage (wading in water,parking in rain)
Refit (refit the motor, electrical system, battery ,frame,fork,etc without our authorization)
Overloading (Riding on steep slope/load more than 260lbs)
Artificial damage (incorrect installation/usages)
Uncontrollable factors (Crash,falling,stolen,etc)
Improper use (Abusive use the bicycle in off-road terrain, mud, water, gravel or jumping from
ramps, stairs or elevated ramps )
Damages caused by natural disasters(such as earthquakes, lightning, fire, flooding and other
hazards).
Use of other components(such as charger,battery,display,or controller,it may result in fire or death)
Acts in violation of laws
18 months Limited Warranty Components
Frame
Motor
Controller
Display
Original Battery
Consumables
Components subject to wear are not covered by the warranty: Tires, inner tubes,brake lines, brake
pads, wheel lining tape,fuses, etc.

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Return Policy
If you buy the bike and then change your mind and simply want to return it for a refund within 30
days of receiving it, then that is fine, make sure the bike in new condition and well packed, but
depending on circumstances we may charge a 10%-50% restocking fee,shipping is not refundable,
and you are also responsible for returning the item to us as per our shipping guide . The returned
unit must be in like-new condition, include all original packaging , accessories and documentation,
any missing components may be deducted from the total refund . Any shipping damage during the
ship-back may incur in a deduction from the total refund.
Please note: Buyer is required to get the packing box,pack the bike,and take the bike to UPS/FedEx
Store when buyer want to return the bike.(Please keep the original box in case of returning if
necessary).We can not accept your return request if you bought the bike for more than 30 days,but
we will keep providing our best customer service.
If buyer pickup the bike locally,buyer is responsible for carrying the bike back to our warehouse.
If you buy the bike in USA,but use it in the other country or Hawaii,Alaska or Puerto Rico,PO
Boxes/APO's which is out of our of delivery range. Buyer is responsible for returning the bike to
original address which we shipped the bike to.

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FAQ
Q: How does after-sale customer service/ warranty work?
A: When you have problems with your bike,please message us on the website where you bought the
bike,we will reply you 1 business days. It is the best if you can describe your problem in details,and
make a video to show your problem,it is the fastest way for solving your problem.
example: My bike does not work. Customer should tell us like that the display can be lighted up,but the
throttle does not work. When you have electrical problems,the first thing we want to know is the
display can be lighted up or not,then please provide more details about how it happens and the
symptom of the problem. We will report your problem/video to our technician team,then we will
give you a solution.If your bike is under warranty,will arrange spare parts from our warehouse in USA.
Q: I'm tech inclined and think I can fix it myself,does that void the warranty if I
do?
A: No, we always like to work with and support customers who are resourceful enough to fix an issue
on their own, and we will provide plenty of tech support over email to guide you through the process.
It saves wasted time and expense in shipping and it can be a useful and fun learning process. Please
contact us prior to attempting a DIY repair, however, as some things have non-obvious complications.
Q:Why the charger is hot?
A: When the battery is charged,it is normal that the charger getting hot,because part of the energy is
converted into heat energy when converting AC to DC. As long as there's no smell, you don't need to
worry about it. However, it's better to put it in a ventilated place, because the heat will accelerate the
aging of electronic components
Q:What is the range of this bike?
A: We try to give a exact number,but the range is related to the road conditions,rider’s weight,wind
resistance,there is ramp or not and how you ride the bike.We test the bike on city road,(slight wind,flat
road,rider 160lbs,with throttle and pedal assist),the range is 20 miles. If you can ride 16-23 miles.it is
normal.Full charging the bike,and pomp up the tyre fully will Increase range.
Q: Can I ride the bike in rain?
A: Yes,ride the rain in moderate or light rain is no problem,please make sure bike is bone dry before
next riding,or the bike will cut-off randomly. But do not parking the bike in rain and never wading in
water. The battery and controller have self-protection program,they will cut the power if there is a
short,but water damage will destroy the electrics of the bike.
Q: What is the most important thing for maintaining battery
A: Remember to charge the bike in time,do not left the bike with empty battery.Remember to charge
the battery once a month if you do not use it for a long time,or the battery will be starved to death as
no power.It will result in short range or display can not be lighted up.
Q: Do you have spare keys for the E-bike?
A: Sorry,we do not have spare keys,but spare lock set. You should replace the whole lock set if you
lost the keys. Remember to keep a copy of the key if necessary.