How To Check A Run Capacitor With A Multimeter

Make sure your device is unplugged and turned off before you find the capacitor.

How to check a run capacitor with a multimeter.

Use your multimeter to confirm the capacitor is fully discharged. To get your readings right on an electrolytic capacitor connect the red probe to the positive terminal then the black to the negative terminal. For non electrolytic you can join them either way. You will be taking a measurement reading of the electrical resistance.

Use your digital multimeter dmm to ensure all power to the circuit is off. In case of a polarized capacitor connect the red probe with the positive terminal of the capacitor generally the longer lead and the black probe to the negative terminal. Connect the positive red multimeter lead to the capacitor anode lead and the negative black lead to the capacitor cathode lead. In case of non polarized capacitor connect it either way as they do not have polarity.

To test a capacitor by dmm digital multimeter follow the steps given below. Connect the meter leads to the capacitor terminals. Next take a photo or make a note of which wire connects to which terminal on the capacitor. Once the power supply is shut off you can use a screwdriver across the two terminals on the capacitor to short it and discharge the unit.

To check your capacitor you ll need a multimeter. Set the knob on your digital multimeter to capacitance settings then connect the probes to the terminals of the capacitor. On most capacitors especially electrolytic capacitors the anode lead is longer than the cathode lead 5 check the multimeter reading. How to test an appliance capacitor with a multimeter to test a capacitor to see if it is working you will first need an ohmmeter multimeter.

If is used in a dc circuit set the dmm to measure dc voltage. If the capacitor is used in an ac circuit set the multimeter to measure ac voltage. This will help to prevent shock. Capacitors are metal tubes that store an electric charge usually found near a motor in the appliance.

Make sure the capacitor is discharged. Use a screwdriver to open your machine and locate the capacitor. Set the meter on ohm range set it at lease 1000ohm 1k.