How to Measure the Capacitance of a Run Capacitor or a Dual Run Capacitor. How to a test a capacitor with a multimeter continuity tester 3. A very good test you can do is to check a capacitor with your multimeter set on the ohmmeter setting. 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. Then, connect the multimeter leads to the capacitor terminals. Most of the mid and high end Digital Multimeters include this functionality. Next, read the capacitance value on the outside of the capacitor, and set your multimeter to its capacitance setting. Using a multimeter with capacitance measurement 4. There are other testing methods other than resistance that can be used. Method 1 Checking a Capacitor using Multimeter with Capacitance Setting. To test a capacitor with a multimeter, discharge the capacitor, set the multimeter to test for resistance then interpret the reading. To safely discharge a capacitor: After power is removed, connect a 20,000 Ω, 5-watt resistor across the capacitor terminals for five seconds. The multimeter is the measuring device of choice when it comes to testing a possibly defective capacitor. 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. 2. How to test a capacitor by short-circuiting it. To do this test, We take the ohmmeter and place the probes across the leads of the capacitor. You can also test the component to determine if it has the proper capacitance rating by measuring the microfarads present in the capacitor. It will then stop at a digital resistance value and return to the Open Line. Note the reading and check whether the reading is closer to the resistance value mentioned on the capacitor. Test a Capacitor with an Ohmmeter of a Multimeter. Use your digital multimeter (DMM) to ensure all power to the circuit is OFF. 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. 5. 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. For this, we need a Digital Multimeter with Capacitance Meter feature. “It’s rather difficult to test a capacitor without a multimeter that has a feature that allows you to test for capacitance directly. This is one of the easiest, quickest and accurate way to test a capacitor. How to test a capacitor using an ohmmeter 5. By taking the capacitor's resistance, we can determine whether the capacitor is good or bad. The effect of a capacitor is known as “Capacitance “and the unit of measuring Capacitance is “Farads”. 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