Run Capacitor Check

Once you have done that please follow the link to our website where you. To check your capacitor youll need a multimeter.

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If the electric motor runs check the current draw amps on both of the capacitor leads.

Run capacitor check. This will help to prevent shock. When testing a run capacitor many techs pull the leads off and use the capacitance setting on their meter to test the capacitor. To check a capacitor by avo ampere voltage ohm meter follow the following steps.

If an electric motor that uses a starting or run capacitor wont run try replacing the capacitor. The capacitor is a commonly replaced part for a motor or compressor that wont start. Select analog meter on ohm always select the higher range of ohms.

Wear work gloves and use a screwdriver with an insulated handle so you dont shock yourself. Waiting 30 minutes or longer will lessen the risk before you remove it. A capacitor on any appliance such as a refrigerator run start washing machine motor or microwave oven can hold a lethal electrical charge.

Take an avo meter. To check a start capacitor start by turning off and unplugging your appliance. On a system that is not running there isnt anything wrong with this test but when you are constantly checking capacitors as a matter of regular testing and maintenance that extra step of pulling the connectors off can be time consuming and in these cases it is also totally unnecessary.

However it does lead to a debate on how to do it. You should see current draw on both leads. Make sure the suspected capacitor is fully discharged.

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. In residential and light commercial hvacr we work with run capacitors every day and you may have noticed that they fail quite often. Then use a screwdriver to open the appliance so you can locate the capacitor which is a metal tube that should be near the motor.

Motors or compressors wont run properly. Because of this many companies are beginning to integrate capacitor testing into their regular diagnoses and maintenance practices and i applaud this. Take the capacitor out of the appliance making sure not to make contact with the leads.

If not the capacitor is probably failed. Next take a photo or make a note of which wire connects to which terminal on the capacitor. This video demonstrates how to discharge and test a capacitor.

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