Gas Water Heater Burner Lights Then Goes Out

First cut off the gas supply switch off your heater and wait for the thermocouple to cool off.

Gas water heater burner lights then goes out.

The gas line is what provides fuel to the burner to keep it lit. But when the thermostat on the tank calls for the burner to fire up it fails because it is starved for air. The thermocouple will conclude that the pilot light is off and thus close the valve and cut off the gas supply. In english that means a gas valve is slowed to continue to release gas for up to 30 seconds after the pilot fails.

One black dial off push to pilot on w hot a notch marking b c d very hot temperature. But if this valve or its inner elements are damaged it can t deliver enough gas to your water heater causing it to shut on and off. Burner lights and heats then goes out and takes pilot with it. Gas valve are allowed 30seconds to fall out.

A complete blockage often prevents the burner from lighting at all. Gas from this valve lights your pilot light and eventually lights the gas burners that heat your water. The first fix to try when the water heater burner goes out is simple. You ll have to manually bend or straighten the thermocouple back to position.

A dirty pilot light for gas heaters can also be the culprit for a water heater not remaining on. There could a fault in the gas valve s main burner solenoid causing it to draw excessive power and starving the pilot flame solenoid. Your gas valve is what delivers natural gas directly to your water heater. Clean those tiny vents.

Enough air still gets through to keep the pilot light lit. If so replace the entire valve. A partial blockage however may allow the burner to light but will not provide enough fuel to keep it lit. Similar to how if there is insufficient flow of gas to the pilot it won t stay lit a pilot tip that.

If you can light your pilot light but it keeps going out the first item to check is the thermocouple.