How to do a Continuity Test with a Multimeter | Repair and Replace

How to do a Continuity Test with a Multimeter | Repair and Replace


Hi, I’m Vance and welcome to Repair and Replace. All circuits need a continuous path for electricity
to flow through. This is continuity, or a closed circuit. When a component fails, it creates an open
circuit as there is no continuity. The appliance will not work properly until
that component is replaced. To test a component for continuity first set the
multimeter to the Ohms or resistance with tone setting. Safely disconnect the power,
and remove the wires or connectors. Now remove the component, or isolate it. Next, touch each probe to each component terminal. If there is no continuity then the multimeter
will display OL or Open Loop. This means the component will need
to be replaced. If there is continuity you’ll get a reading above 0 ohms, but the resistance will vary between load or non-load components. Non-load components such as switches,
thermostats or fuses, provide an unrestricted path for
the electricity to pass through. These will typically have a resistance reading
between 0 and 1 ohms. Load components include heating elements, solenoids,
motors, or any component that consumes power. They will need a specific resistance value
to function correctly. This is different for each component and will
vary between models. You can learn more about testing appliance
components in the video linked below. For more troubleshooting on water heaters,
furnace and appliances, then subscribe to our channel. And if you need help, you can call
or visit an AMRE location to talk with our knowledgeable staff. Thanks for watching.

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