How to Fix / Troubleshooting

Safety: If you smell gas, do not attempt to relight. Ventilate the area and contact gas emergency services.

Verify gas supply: Confirm the gas shutoff valve to the heater is open and other gas appliances work.
Check for air in gas line: After gas work or long shutdowns, air may be in the line. Several ignition attempts may be needed, but do not repeatedly reset more than a few times.
Clean ionization electrode: With power and gas off, remove the combustion cover. Clean the ionization rod with fine abrasive pad and ensure it is correctly positioned in the flame path.
Inspect gas valve wiring: Ensure the gas valve connector is firmly attached and wires are not damaged.
Professional gas pressure check: If EA persists, a technician must measure inlet and burner pressure and test the gas valve.

Unit locks out with EA; ignition sparks are heard but burner does not light or lights briefly then goes out.

Possible Causes