DescriptionThis video provides step-by-step instructions for replacing the spark igniter on AO Smith gas water heaters. The most common reasons for replacing this part is if the burner will not light.
All of the information in this thermostat replacement video is applicable to the following brands: AO Smith
Step-By-Step Instructions1
To replace the spark igniter on this a.o. smith gas water heater…
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… first disconnect the spark wire from the spark igniter wire.
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You can now push the old spark igniter back toward the tank to remove.
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To install the new spark igniter…
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… align the bracket on the gas valve and push forward to snap it into place.
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The water heater should now be ready for use.