Water Heater Piezo Igniter Not Working

If the pilot is restricted try removing it and clearing it with a stiff brush and or compressed air.

Water heater piezo igniter not working.

The piezo igniter is still intact and hooked up but just won t 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. The most common reason for replacing. Don t panic just because the piezo igniter has seized up and is no longer working there is still life to be had out of your hot water service providing the tank hasn t ruptured.

Most water heaters do not have any wires attached to the gas valve. Check the igniter for any visible cracks or breaks. I can t get to the pilot because it s a sealed chamber. And one damaged cord that the drum sander ate because it was just that kinda day.

Make sure the electrode is not broken and replace it if it is. Make sure the wire is connected at the bottom of the push button that makes the igniter spark. If any visible cracks or breaks are present replace the piezo igniter. The other tell tale sign is the wire that runs from the gas valve to the igniter.

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. While continuing to hold down the pilot button press down on the igniter button three or four times. 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.

Turn the gas off to the water heater and press the piezo igniter. 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. Check if the wire connection is tightened correctly. The pilot ignites the water heater s gas burner.

Sometimes carbon deposits can build up on the pilot and eventually create a restriction. Ao smith promax water heater igniter not sparking. Once pressed the electrode should release the spark. You should be able to see it above or next to the gas supply line for the pilot light.

This video provides step by step instructions for replacing the igniter and flame sensor on ao smith gas water heaters.