"I like to see oral sex, and manual sex, and intercourse as foreplay for my vibrator sex."
The most common problems that cause our beloved vibrators to die are dirty connectors, wires becoming disconnected due to overly strong vibrations, frayed wires, or water inside the motors causing erosion. Other issues that may ensue, but not necessarily stop our toys from working (right away) are loud or high pitched squeaky noises coming from dirty motors and water getting into the battery compartments.
If your toy has died and simply won't turn on any longer it might mean that one of the cords inside the motor, connecting the battery unit to the motor itself, has become disconnected. This happens because the off center-weight of motor turning causes the wire to slip out of its intended place. If the wires aren't connected properly the motor can't receive the intended amount of power to run and your toy won't work.
Frayed wires are another issue that often causes our vibrators and bullets to stop functioning. While the cause of this problem can be another case of the motor vibrating too powerfully for the small wires to withstand, another issue may be the source. Sometimes, particularly in the case of bullets being used internally, pulling on the cords may cause this fraying.
If the controls on the control panel are malfunctioning or have simply stopped working, the wires connecting them may have been disconnected, are not receiving the proper amount of connection, or may be frayed. Rust or other oxidation problems may also be to blame.
Another common problem with the battery unit's connectors is that sometimes the spring inside the battery case has become twisted, coiled oddly, or become flattened causing an odd connection. Luckily this is an easily fixable problem with a pair of pliers in most cases.
There is a small piece of paper or occasionally plastic that can be found in your battery compartment in most vibrators, too. This small insert usually serves to keep your motor from rattling and being nosy. Sometimes if the insert has slipped it may block the springs from making the proper connection. Some say it's better to leave the insert in place to keep the vibrator functioning properly while others believe you can replace the insert yourself if this problem occurs. In issues such as this it's best to contact your toy's manufacturer for advice before attempting something that may destroy your vibrator altogether.
If you have a rabbit vibrator you may have noticed that not only does your toy vibrate, but it also rotates. Inside of these vibrators is a secondary motor that causes the rotations. It is a system of connected gears that move and create the rotational movements. Sometimes these small gears may tilt, bend, and catch preventing movement. They may also become jammed with loose black debris as in the traditional vibrating motor. If either of these problems occur with your rabbit it will stop working and needs to be replaced.
Water getting into the battery housing unit can cause issues all its own. The springs and connectors may rust, the water may leak into the motor portion of the toy, or the water may leave traces of minerals that react negatively with your batteries depending on the water quality of where you live.
Waterproof toys usually come with a small rubber ring around the lid of the battery compartment to keep the unit air tight. If this ring has become lost or cracked your toy will allow water to leak through and is no longer 'waterproof.' Be careful when cleaning toys and try to dry them as best you can afterwards. Also make sure you don't twist the lids of these toys too tightly. If the lid cracks or breaks, the water proof seal is broken and the springs on the lid may not be able to make the proper connections.
When water gets into the motor portion itself it may interfere with the electrical responses of the motor, or simply leave a residue that interferes with the internal function. If your toy's motor gets dirty, which it may from the copper coils getting black debris on it, it may become noisy, squeaky, or stop working. Sometimes cleaning these coils and putting a bit of a Vaseline based lubricant on them can fix the problem. However as these are located inside the motor it can be very hard to get to and fix.
All these issues may lead to the death of your favorite vibrator or bullet. The final cause we have to face is time itself. None of these toys are meant to last forever, and their motors certainly don't. Even if you manage to avoid most of the main causes for vibration failure the motor itself will eventually give out and simply stop working. Luckily there are many affordable and attractive choices available to become your next favorite toy on the market.