These are common steps in troubleshooting your motor:
- Make sure that your rotor spins freely if you give it a slight push with your hand.
- Test your electromagnet. Connect one 1.5V battery to electromagnet wires briefly. The electromagnet should push the closest magnet on the rotor. The rotor should turn 45° if you have 4 magnets on a rotor, or 90° if you have 2. If it does not – switch the wires.If your electromagnet does not work, it may be shorted. Sometimes re-winding the electromagnet may solve this problem.
|Newly assembled motor does not work: rotor does not spin.||Rotor is in a "dead spot" – the magnet is outside of reed switch working range. This usually occurs with 2 magnet rotors.||The rotor will not start spinning on its own. Give it a slight push.|
|Rotor is jammed.||Find the exact cause and fix the problem. This may require breaking off the stands and reattaching them to the board. You may try to lubricate the axles with WD-40 or any other lubricant.|
|Electromagnet attracts the magnets instead of repelling them.||Switch the battery connection wires.|
|Bad connection in wiring.||Thoroughly clean the wires to remove the insulation.|
|Reed switch is too far from the rotor.||Move reed switch closer.|
|Reed switch does not function when a magnet passes near its center.||The most sensitive part of the reed switch is not in the middle of it, but more to the side. Move the reed switch left or right.|
|The battery is dead or battery voltage is low.||Get a new battery. Increase the voltage by adding an extra battery.|
|One of the magnets is not repelling.||Tear this magnet off and glue it upside down. All of the magnets should have the same pole
|Motor worked fine for a while but then stopped working.||The battery is dead or battery voltage is low.||Get a new battery. Increase the voltage by adding an extra battery.|
|If you use high voltage (6V or higher) you can see a blue spark inside of the reed switch. Sometimes it may weld the contacts together.||Disconnect the battery. Flick the reed switch tube slightly. In most cases it will fix the problem temporarily. Afterwards it is recommended to lower the voltage or connect a ZNR parallel to the reed switch. You may also need to replace the reed switch.|
|The electromagnet gets hot.||Not enough wire used for the electromagnet.||Make sure that the electromagnet coil has enough wire. Use almost all the wire from the spool.|
|Short connection inside the electromagnet.||Re-wind the electromagnet. It is better to use a new spool of wire, but sometimes the old wire may still work.|
|If you need to disassemble the rotor…||This operation may require quite a bit of strength. Disassemble the rotor with a rocking motion as if trying to break it and at the same time pulling the ends out.|