This information should be printed on the outside of the capacitor as well. Disconnect the capacitor from its circuit. AC Fan/Compressor Not Working - How To Test /Repair Broken HVAC Run Start Capacitor Air Condition HD - Duration: 26:33. How To Test a Capacitor. Method 2 Checking a Capacitor using Multimeter without Capacitance Setting. Test a Capacitor with a Voltmeter. Richard Lloyd 2,652,620 views You may, if you wish, disconnect only 1 of the 2 leads from the circuit. Hold the probes by their base... 3.

If you want to test a blower motor capacitor of yours, make sure that you discharge it with a screwdriver before you begin the test. How to measure capacitance Use your digital multimeter (DMM) to ensure all power to the circuit is OFF. Most multimeters don't have this function, though, but you can still test a capacitor using the voltmeter or ohm meter setting. How to Test a Capacitor? A very good test you can do is to check a capacitor with your multimeter set on the ohmmeter ... Test a Capacitor with a Multimeter in the Capacitance Setting. Use the capacitance setting on a digital multimeter. Motors or compressors won’t run properly? 3. Method 1 Checking a Capacitor using Multimeter with Capacitance Setting. Disconnect and Discharge the Capacitor To check a capacitor with an ohm meter, you must do two things. This video demonstrates how to discharge and test a capacitor. Check the capacitor’s voltage rating. The capacitor is a commonly replaced part for a … If the capacitor is used in an ac circuit,... Visually inspect the capacitor. Using a Multimeter 1. Multimeters are electronic devices that read the voltage and... 2. Press the screwdriver against the terminals and the capacitor will discharge. Place the red probe on the positive terminal and the black probe on the negative. If you suspect the capacitor is dead, conducting an ohm meter test is the easiest way to find out. 2. Testing a Capacitor With a Voltmeter 1. Make sure that your screwdriver has a handle that is resistant to electric shock and is careful once you start to discharge the capacitor. Test a Capacitor with an Ohmmeter of a Multimeter.