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Igniter Electrode
Suburban SW4D Igniter Electrode
The electrode and its lead make the spark that lights the burner. A cracked insulator, worn tip or damaged wire is a common cause of no-ignition faults.
The Suburban SW4D uses direct spark ignition (DSI), so the electrode and control board work together: check the electrode gap and lead before replacing the board.
We do not have igniters and electrodes listed for the Suburban SW4D right now.
To verify compatibility, contact Suburban directly with your water heater model and serial number.