Can I fix A.O. Smith code Solid myself?

Start with these safe checks: Turn the gas control knob to OFF, wait 10 minutes for the thermopile to cool, then relight following the label. The control requires the 10-minute wait between attempts. If the pilot keeps going out, call a qualified technician.

When should I call a technician for code Solid?

If the pilot keeps going out, call a qualified technician. Smell gas? Leave right away, don't touch light switches or phones inside, and call your gas utility or 911 from outside. Never open a gas valve, burner, gas line, vent or flue connection, or bypass a safety switch. Repeated lockouts, scorching, soot, or a CO alarm mean shut it off and call a licensed gas technician.

A.O. Smith Water Heater Error Code Solid / LED on solid / steady…

What Solid means

A solid status light means the pilot was recently extinguished and the thermopile is cooling down.

Also shown as: LED on solid, steady light, depending on the model.

Likely causes

Pilot recently went out

Safe first checks

Turn the gas control knob to OFF, wait 10 minutes for the thermopile to cool, then relight following the label. The control requires the 10-minute wait between attempts.

When to stop

If the pilot keeps going out, call a qualified technician.

Checked against: A.O. Smith Residential Standard Gas Water Heater Service Handbook: diagnostic flash codes. Codes can differ by model and year, so confirm with your owner's manual.