This is one of the easiest, quickest and accurate way to test a capacitor. The effect of a capacitor is known as “Capacitance “and the unit of measuring Capacitance is “Farads”. How to test a capacitor using an ohmmeter 5. Next, read the capacitance value on the outside of the capacitor, and set your multimeter to its capacitance setting. How to Measure the Capacitance of a Run Capacitor or a Dual Run Capacitor. Use your multimeter to confirm the capacitor is fully discharged. You can also test the component to determine if it has the proper capacitance rating by measuring the microfarads present in the capacitor. 2. Then, connect the multimeter leads to the capacitor terminals. Method 1 Checking a Capacitor using Multimeter with Capacitance Setting. How to a test a capacitor with a multimeter continuity tester 3. By taking the capacitor's resistance, we can determine whether the capacitor is good or bad. Use your digital multimeter (DMM) to ensure all power to the circuit is OFF. 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. They are used in computers, power supplies, and with appliances that use a motor. 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. 5. How to test a capacitor by short-circuiting it. Note the digital resistance reading: The digital multimeter will start reading from zero and move towards infinity. 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 safely discharge a capacitor: After power is removed, connect a 20,000 Ω, 5-watt resistor across the capacitor terminals for five seconds. 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. 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. Using a multimeter with capacitance measurement 4. To do this test, We take the ohmmeter and place the probes across the leads of the capacitor. Test a Capacitor with an Ohmmeter of a Multimeter. 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. 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. The multimeter is the measuring device of choice when it comes to testing a possibly defective capacitor. 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