Originally Posted by ohhimself
Hello, 2002 Shamrock. The pilot light on my Suburban water heater suddenly will not stay lit. It will remain Lit for 30 seconds or so but will then go out. There is gas in tanks. Any ideas. Everything else works with the propane. Thanks
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Your water heater is working as advertised. The light is not an "ON" light; it is a "calling for heat" light and a "flame never lit" warning light.
Calling for heat - water cold; light comes on; then fire lights; light goes out.
Calling for heat - water cold; light comes on; NO FIRE; light stays on; water heater tries again (3 times total); Heater fails; light stays on until you reset it by turning OFF water heater.
If your light takes more than 10-15 seconds to go out, your heater is struggling to light. Something could be wrong that is causing unreliable ignition. Bug nests in flue is the usual suspect; though improper air shutter for altitude; dirty nozzle; or bad spark electrode/gap could also cause long "light" times.
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