There s just enough air getting into the burner area for the pilot light to work but not enough to sustain the big ring of fire.
Water heater pilot flame goes out.
If there is rust against it brush that away while the flame is off may be blocking pilot flame.
The flame will go out if the tube is clogged with dirt or debris.
If the pilot doesn t relight if it goes out right after lighting or if the pilot light keeps going out by far the most common cause is a bad thermocouple.
Sometimes it s referred to as the flame sensor it s a safety mechanism that shuts the gas off should the pilot go out.
Down draft from the ceiling fan draft at the bottom of the unit or high winds are also common reasons when the pilot would go out.
The pilot tube supplies gas to the pilot light for combustion.
The water heater is starved for air.
When the water heater pilot light goes out first try relighting it following the directions on the water heater label.
Sometimes the tube might be partially clogged and supplying very little gas for combustion no wonder your pilot light keeps going out.
If you re water heater doesn t have a sealed combustion chamber it s possibly that the pilot light can be blown out due to a strong draft near your unit.
Now you have the johnny cash ring of fire song in your head.
Thorough cleaning should do the trick.
The water heater pilot light is a small flame that ignites the gas burner on your water heater.
If the thermocouple fails to shut off the gas all the gas flowing through the furnace could get into your home.
Flame was blown out.
Here s the short answer to why the water heater burner goes out.
In this hvac training video i show up close how the thermocouple pilot light and gas valve work on a water heater furnace fireplace as well as other ap.
Most of the time improper venting would cause the pilot outage on direct vent gas water heaters dv.
If this pilot light ever goes out the heater has no way of actually turning on to heat the water or air that your particular type of heater circulates to warm the house or other elements.
If there is a restriction in the fresh air delivery find the reason and remove the obstructions.
Not enough combustible air.