To test a capacitor using a digital multimeter with a capacitance setting, start by disconnecting the capacitor from the circuit it’s a part of. Note the reading and check whether the reading is closer to the resistance value mentioned on the capacitor. The effect of a capacitor is known as “Capacitance “and the unit of measuring Capacitance is “Farads”. They are used in computers, power supplies, and with appliances that use a motor. How to test a capacitor using an ohmmeter 5. Test a Capacitor with an Ohmmeter of a Multimeter. How to Measure the Capacitance of a Run Capacitor or a Dual Run Capacitor. It will then stop at a digital resistance value and return to the Open Line. “It’s rather difficult to test a capacitor without a multimeter that has a feature that allows you to test for capacitance directly. A standard digital VOM or multimeter that includes a MFD (microfarad) option is set (on its dial or selector) to MFD and with the capacitor disconnected from any other wiring the VOM probes are touched to two terminals on the capacitor. Then, connect the multimeter leads to the capacitor terminals. A very good test you can do is to check a capacitor with your multimeter set on the ohmmeter setting. There are other testing methods other than resistance that can be used. By taking the capacitor's resistance, we can determine whether the capacitor is good or bad. How to Test for a Bad Capacitor Using a Digital Multimeter A capacitor is a device that is very important in the case of most of the electronic appliances. 2. For this, we need a Digital Multimeter with Capacitance Meter feature. You can also test the component to determine if it has the proper capacitance rating by measuring the microfarads present in the capacitor. A digital multimeter that comes with capacitance settings is your perfect choice to carry out this test as it gives the quickest and the most precise results. Next, read the capacitance value on the outside of the capacitor, and set your multimeter to its capacitance setting. To do this test, We take the ohmmeter and place the probes across the leads of the capacitor. Testing the run capacitor with a multimeter You can use an analog Ohm meter to test the capacitor’s ability to store and release an electrical charge. To test a capacitor with a multimeter, discharge the capacitor, set the multimeter to test for resistance then interpret the reading. Use your multimeter to confirm the capacitor is fully discharged. Most of the mid and high end Digital Multimeters include this functionality. To safely discharge a capacitor: After power is removed, connect a 20,000 Ω, 5-watt resistor across the capacitor terminals for five seconds. 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