Water heater piezo igniter not sparking in Greater Vancouver

When you press the piezo igniter button on your gas water heater and nothing happens, lighting the pilot becomes frustrating fast. The piezo igniter is a simple spark-maker, and a non-sparking one is usually a small problem, but it sits right at the burner. Here is what to look for and how a Greater Vancouver homeowner can troubleshoot safely.

What the piezo igniter does

The piezo igniter is a push-button device that creates a high-voltage spark to light the pilot flame. It uses no batteries or wall power; pressing the button physically generates the spark through a tiny crystal. You should hear a sharp click and see a spark jump at the pilot when it is working.

When it stops sparking, the rest of the water heater may be perfectly fine, you simply cannot get the pilot lit through the built-in igniter.

• You press the button but hear no click or hear a click with no visible spark
• The spark appears but does not reach the pilot tip (wrong gap or misaligned electrode)
• You can light the pilot with a long match or lighter, which confirms the igniter is the issue
• A cracked igniter body or a loose, corroded wire near the burner

Safe steps and when to call a technician

Make sure you are following the lighting sequence on the unit's label exactly, holding the control knob in the pilot position while you click. Confirm the gas is on and the burner intake is clear. If the igniter still will not spark but you can see and smell that gas is reaching the pilot, that points to the igniter or its electrode rather than the gas supply.

Replacing a piezo igniter or its electrode means working inside the burner compartment near the gas valve, so it is a job for a licensed technician. Importantly, if you smell gas at any time, do not keep clicking the igniter. Leave the home and call your gas utility's emergency line first.

Frequently Asked Questions

Can I just light the pilot with a match instead?

On many models you can carefully light through the access port, but only if you can do so without smelling gas and while following the label instructions. A non-sparking igniter still needs repair, since it is part of the safe lighting system.

Why does my igniter click but not spark?

Often the electrode is dirty, cracked, or out of position so the spark grounds out before reaching the pilot. A technician can clean or realign it, or replace the igniter if the crystal has worn out.

Is a broken piezo igniter dangerous?

The igniter itself is low risk, but repeatedly trying to light a unit while gas is flowing is not. If you smell gas, stop, leave, and call your gas utility's emergency line before anything else.

Should I replace the whole water heater over this?

Usually no. A piezo igniter is a minor, repairable part. Replacement only makes sense if the heater is also old and showing other failing signs, which a pro can assess for you.

HeatLand Heating & Cooling is a licensed and insured, TSBC-certified HVAC company serving homeowners across Greater Vancouver. Our technicians diagnose the real fault, explain your options in plain language, and complete the work safely and to code.

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