Water Heater Piezo Igniter Not Working

Most water heaters do not have any wires attached to the gas valve.

Water heater piezo igniter not working.

The most common reason for replacing. Check if the wire connection is tightened correctly. If a spark is present every time the igniter is pressed the piezo igniter is fine if no spark is seen replace the piezo igniter. Once pressed the electrode should release the spark.

While continuing to hold down the pilot button press down on the igniter button three or four times. The piezo igniter is still intact and hooked up but just won t spark. If the pilot cannot be cleaned replace it. Ao smith promax water heater igniter not sparking.

The other tell tale sign is the wire that runs from the gas valve to the igniter. Turn the gas off to the water heater and press the piezo igniter. Make sure the electrode is not broken and replace it if it is. Sometimes carbon deposits can build up on the pilot and eventually create a restriction.

This video provides step by step instructions for replacing the igniter and flame sensor on ao smith gas water heaters. Check the igniter for any visible cracks or breaks. There are two options either have a new piezo igniter installed by a licensed plumber or have a licensed plumber attend your home or office and re light the burner with a barbeque lighter as seen in the image below. The pilot ignites the water heater s gas burner.

Make sure the wire is connected at the bottom of the push button that makes the igniter spark. Connect the piezo igniter to the electrode figure 3 holding the electrode about to away from the shell of the heater with the insulated pliers depress the piezo igniter. This was two days of work and back and forth to home depot. If the pilot does not light the water heater will not heat.

If any visible cracks or breaks are present replace the piezo igniter. You should be able to see it above or next to the gas supply line for the pilot light. And one damaged cord that the drum sander ate because it was just that kinda day. A water heater igniter has a sparking tip that is directed at the location of the pilot light.

When trying to light the heater be sure to put the gas valve on the water heater in the pilot position and hold down on the pilot button.