Water Heater Pilot Light Goes Out After Burner Shuts Off

Clean those tiny vents.

Water heater pilot light goes out after burner shuts off. The thermocouple is the copper rod the pilot flame directly hits. Then the whole episode repeated. Enough air still gets through to keep the pilot light lit. Sometimes it s referred to as the flame sensor it s a safety mechanism that shuts the gas off should the pilot go out.

Sometimes the tube might be partially clogged and supplying very little gas for combustion no wonder your pilot light keeps going out. Yes you have a dirty pilot assembly which causes a lazy flame and when the main burner lights the draft through the water heater pulls the flame away from the thermocouple and shuts it down the only fix is to have the pilot cleaned while your at it have a new thermocouple installed something temporary that may help you is with the pilot burning reach in there with a screwdriver and just. I can light my pilot light and it will stay on and then it will turn on the burner. Apparently when the burner comes on the pilot light goes out.

Once the burner is done heating the water it turns off but also turns off the pilot every time. Same thing lit pilot burner came on the after a heat cycle burner shut off as well as pilot. The flame will go out if the tube is clogged with dirt or debris. If the thermocouple fails to shut off the gas all the gas flowing through the furnace could get into your home.

When lite the pilot flame is a good strong blue with some slight orange hitting the tip of the thermocouple. Today s heaters use very small pilot flames which are easily blown out by the puff created when the main burner goes off. Trying an immediate restart only igniter worked after about 4 or 5 minutes was able to light the pilot. If the supply of gas to the pilot light or burners is interrupted due to the gas valve or its inner elements being damaged your gas water heater will shut off.

Check to ensure that the pilot light flame is high enough to reach and touch. Use a slender needle to gently unclog the tube. The pilot tube supplies gas to the pilot light for combustion. If there is no heat the thermocouple assumes that the pilot is off and thus shuts down the gas supply to the burners.

So the pilot has no problem staying on but something is turning off the pilot when it is done heating. But when the thermostat on the tank calls for the burner to fire up it fails because it is starved for air. After lighting the pilot i will slowly turn the temperature know up until the burner lights. Pilot on water heater goes out after it heats water and flame is turned off it blows out the pilot.

In that case the pilot burner has to come out. If that s the cause some gas controls have a pilot adjustment. The first fix to try when the water heater burner goes out is simple.