How to Use a Multimeter to Check the Voltage on a Water Heater : Hot Water Heaters

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Checking the voltage on a hot water heater is going to require the careful use of a device called a multimeter. Use a multimeter to check the voltage on a hot water heater with help from an area manager for Roto-Rooter Plumbing & Drain Service’s Independent Contractors Division in this free video clip.

Expert: Dave Jones
Bio: Dave Jones is currently an Area Manager for Roto-Rooter Plumbing & Drain Service’s Independent Contractors Division. He oversees 17 Roto-Rooter locations for the company.
Filmmaker: Dave Jones

Series Description: Hot water heaters are one of the most important appliances in your home, but they can also become one of your biggest nightmares if you aren’t careful. Get tips on managing and maintaining your hot water heater with help from an area manager for Roto-Rooter Plumbing & Drain Service’s Independent Contractors Division in this free video series.

16 Replies to “How to Use a Multimeter to Check the Voltage on a Water Heater : Hot Water Heaters”

  1. This helped me tremendously. The water heater was not heating the water at all. I changed both elements to no avail. After using the multi meter and testing the thermostat and not getting 240 volts, I determined I had a bad breaker. Very good instructnal video regarding how to use multi meter

  2. This video helped so much. Thanks. I was just trying to see if I turned the proper circuit breaker off for my hot water heater tank. It's clearly labeled on the fuse panel. I just wasn't sure.

  3. You are a plumber not an electrician,
    Now we going to have a electrician teaching how to do the main drain line. ????

  4. I put my leads on both of the two top screws and it blew the leads off my multimeter. What gives? I did it exactly like the video showed.

  5. also mention that some single element , lower capacity water heaters use 120 volts and will state that on the information sticker on the heater.

Comments are closed.