blenderBroken blender? Not a problem; with just a few basic tools and a continuity tester, you don’t have to be an electrical engineer to diagnose and fix a problem with your small appliance. Here’s how to about fixing your first blender:

Keep in mind that the fundamental task of your blender is to spin the motor shaft that in turn allows the blender’s blade to spin. The best way to keep this process problem-free is to refrain from over stuffing your blender and to keep all seals nice and tight. If it’s too late for preventative measure talk, don’t worry, we’ll get to how you can fix it up again.

But first let’s quickly go over the multispeed switch in your blender. It sends currents to the motor based on which speed you chose (which turned the rheostat to a certain level). More current equals faster, more powerful chopping.

The jar of your blender holds liquids, but also must be able to disassembled for cleaning purposes. This means that the blender has to be equipped with seals to keep liquids from escaping into the circuitry. The blender also has a seal around the coupling to make sure liquids don’t seep into the motor.

Ok, time to repair stuff:

blender insideSay the switch is broken, which is pretty common in blenders. Unplug the blender, remove the blender base, and notice that the multispeed switch is attached to the base with clips or screws accessed from underneath the base’s faceplate or from inside the base. You may not need to remove the switch entirely; oftentimes switch issues are caused by loose terminals that can be tightened back up in no time. If, on the other hand, you see a blackened terminal or wire, you have a switch problem.

Whip out your continuity tester and see if that multispeed switch checks out. If not, some compressed air can help to dry and clean out a switch that has suffered some liquid damage. If that doesn’t work, you’ll have to replace the switch.

If you’ve got a blown fuse (blenders are made so that fuses will blow before excessive current is sent to the sensitive and more expensive motor; replacing a fuse is much easier and less expensive), remove the blender base and find the fuse in the wire from the multispeed switch to the motor. Disconnect the wire and check it out with your continuity tester. Open circuits mean blown fuses, so if that’s the case your best bet is to replace the faulty in-line fuse with one of identical rating.

Worst case scenario, your motor is malfunctioning. It’s easily tested: use an ohmmeter to test whether the circuit is complete by placing a probe on each cord prong, selecting a speed control button, and reading the resistance on the meter. If the resistance changes when you rotate the drive stud clockwise one turn, the motor needs service. Let an appliance repair shop handle this one.

However helpful this has been so far, it’s important to remember that the most common problems among blenders are caused by jars leaking liquids. You can tighten the base, but if this doesn’t work you may need to replace the gasket.