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The electric bike controller is one of the most important parts that can spoil your ride or make your bike trip one of your happiest moments
The reason for this is that the controller works like a computer controlling all parts of the electric bike
Despite the importance of the controller, the good thing is that you can test the controller at home using 3 methods, one of which does not need any tools in the first place!
That is why, in this post, we will discuss how to test an electric bike controller at home using three proven methods.
How to test ebike controller at Home ?
In order to test the electric bike controller at home, you can follow the wires connected to the controller, use a multimeter, or use an electric bike tester.
After we answered the main question of today’s post in a few words, we will explain in the coming parts the details of each method so that you have complete knowledge of how to test the controller at home.
How to use Ebike wires to test the controller?
In this part, we will explain the correct way to use the electric bike wires to test the controller
The basic rule for you in this part is to always start from the easiest to the most difficult, meaning that all the wires in the electric bike are connected to the controller, whether the connection is direct or indirect.
This means that there is one end of the wire connected to ebike parts and the other part connect to the controller
Based on this, the easy part for you is always the tip of the wire that is connected to a part of the electric bike, such as the throttle, brakes, or battery.
For this you will check all the ends of the external wires as follows:
1- Get a pen and paper
2- Mark the wires you are checking
3- Write down the name of the wire that you are testing (such as brakes, throttle, or battery, noting that the order is not necessary. The idea is to remember the wire that you checked)
4- Turn on the electric bike (if you can operate it)
5- Disconnect the throttle cable and then try to start the bike
6-Insert the throttle cable again, then disconnect another cable
Continue in this way so that you disconnect only one cable at a time, and each time try to start the bike. If there is any change in the cable when disconnecting one of the cables, this indicates that the cable that you disconnected has a direct or indirect relationship with the problem for which you are testing the controller.
If you have checked all the wires and no change has occurred, you will repeat the same steps again, but on the side of the wire connected directly to the controller.
This method is considered one of the primary ways to test the controller, as you will be able to determine which part of the controller has a problem.
What distinguishes this method is that it does not need any tools, but on the other hand, it will take more time comparing to the other testing methods.
Now we will move on to the second method of testing the controller at home
How to use Multimeter to test the controller at Home?
When using the multimeter to test the controller, we will do a test for the completion of the electrical circuit, or in other words, what is called the continuity test.
The purpose of this test is to ensure that the electric current can be transmitted between the end of the controller wire and the end of the wire connected to the various parts of the electric bike.
Now let’s start the testing steps
1- Connect the black Probes to the COM “Common Socket”
2- Connect the RED probes to the VΩma (volts, ohms & milliamp)
3- Dial on the multimeter down to the diode symbol
4-Turn off your ebike & remove the controller as we will test it separately
5-Connect the Black probe to the battery cable in the controller.
6-Put the Red probe on all the other wires and note the readings on the multimeter
What you are looking for is a reading of less than 9 ohms, because any number less than 9 is considered a sign of a problem with the wire you are testing.
You can also use the sound sign on the multimeter so that if you hear a beep, this indicates a problem
Note, the problem may be in the MOSFET of this cable, and you can learn how to change it from here
How to test ebike Controller at home using Ebike tester?
Before we start explaining how to test the controller using ebike tester, let me give you a small idea of how the electric bike tester works.
The idea is simply that the device performs the same work as a multimeter in the previous method, but the difference is that the device gives you lights instead of readings, so that it is very easy for you to determine the part that has a problem in the bike in general and also in the controller, if there is Any problem with it, you will notice that the lights on the tester are not working or are constant all the time, and if there is no problem, the colors will light up sequentially.
How to use ebike tester?
Disconnect all control cables connected to the electric bike
Connect all controller cables to the tester
Turn on the tester from the power button
Watch the controller lights on the tester
If you notice that the lights are fixed or that there is a light that does not work, this indicates that there is a problem
This method is the best of all if you compare it between the three methods
Where it is considered the easiest, fastest, most accurate, and also the cheapest, as the price of the tester is very cheap (between $ 10 to $ 15).
Conclusion.
The controller can be tested at home with a multimeter, electric bike tester, or by tracing the wires
It is preferable to use a tester because it is suitable for everyone with different experiences with electrical devices
