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GenoB's avatar
GenoB
Explorer
Jan 06, 2020

Suburban SW6 lights but drops out after 30+ seconds

I'm a pretty good troubleshooter but this one has me going. My 10 year old water heater has been working fine but now will only light and run for approx 30 seconds + or - a few seconds. a) Normal se...
Old-Biscuit's avatar
Old-Biscuit
Explorer III
Jan 07, 2020
Have you cleaned the orifice & burner tube?

12VDC staying on gas valve then gas is present and flowing...dirty orifice/burner tube will disrupt that balabnce between air/fuel resulting in flame out

Soak in alcohol then air dry
NO POKING or HIGH Pressure Air

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