DescriptionThis video provides step-by-step instructions for replacing the heating element on AO Smith electric water heaters. The most common reasons for replacing the heating element are if the water heater gets too hot or does not heat.
All of the information in this heating element replacement video is applicable to the following brands: AO Smith
Tools used: flat-head screwdriver, Phillips head screwdriver, tape, 1 and 1/2” socket
Step-By-Step Instructions1
Before you replace a heating element in your water heater shut off the power to the unit
2
Close the water intake valve.
3
Next, you should drain half the tank if you’re replacing the upper heating element or fully drain the tank if you’re replacing the lower element.
4
Be aware you should open a hot water faucet in the home to assist in releasing water from the tank.
5
After draining the water, close the valve.
6
Use a phillips-head screwdriver to remove the mounting screw securing the access cover of the element you’re replacing and remove the cover.
7
Move the insulation out of the way and remove the plastic cover.
8
Note the orientation of the wires attached to the heating element and loosen the screws to detach them.
9
Use a one-and-a-half-inch socket or a heating element wrench to help unthread the old element by rotating it counter-clockwise.
10
Before you install the new heating element confirm that the gasket is in place.
11
Insert the new element into the tank then thread and tighten.
12
Attach the wires to the appropriate terminals on the new element and tighten the screws to secure.
13
Reposition the plastic cover.
14
Reposition the insulation and realign the access cover.
15
Replace the mounting screw to secure the cover.
16
Open the water intake valve and allow the tank to refill then restore power to the unit and your water heater should be ready for use.