Sime Delayed Ignition

Water heater occasionally emits a small puff or pop at ignition.

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Dirty burner, Incorrect electrode position, Low gas pressure at startup, Slow-opening gas valve

Safety: Repeated delayed ignition can damage the burner and is a combustion safety concern.

Steps:

Clean burner and electrodes: With gas and power off, clean the burner ports and ignition electrode as described earlier.
Check electrode gap: Ensure the ignition electrode is set to the gap specified by Sime and positioned correctly over the burner.

Professional help: If popping persists, a technician must check gas pressures, valve operation, and combustion settings.

Hard 4/5

Burner and Ignition Electrode

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