What would you like to do?

Why does your gas hot water heater pilot keep going out?

already exists.

Would you like to merge this question into it?

already exists as an alternate of this question.

Would you like to make it the primary and merge this question into it?

exists and is an alternate of .

  • This is usually caused by a bad thermocouple. The thermocouple looks like a thick, solid copper wire screwed into the gas valve on the water heater. The pilot flame heats the tip of the thermocouple, causing it to generate a minute electrical current at low voltage, which provides power to an electric valve that controls the flow of gas to the main burner. If you attempt to relight the pilot burner and it refuses to stay lit when you release the button on the gas valve a minute, or so, after the flame has been lit, the thermocouple is the most likely cause. Replacement thermocouples are readily available from most hardware stores and can be replaced by the homeowner, using simple tools, by following the instructions on the package.
  • Another cause of the problem could be a lack of air to the combustion chamber. Newer water heaters require more volume of air due to the addition of a heat sensitive diode to the thermocouple. Not enough air flowing through the combustion chamber to carry the heat up through the flue causes heat build up, which kills the thermocouple. On my water heater, I could light the pilot and the water heater would burn for 20 minutes or so and shut off. The fix included routing the flue straight through the roof and opening floor to allow more air into the water heater compartment.
  • Another possible culprit may be water-heater vent height above the roof. In some situations this may periodically result in a downdraft that could cause the pilot light to go out. If this is the case adding to the vent height may help. Note: building code states that the B vent required height is based on the roof pitch but it must be 2 feet higher than any portion of the building within 8 feet of the vent.
  • Make sure the vent cap isn't missing or rusted through on the roof, it will cause drafts and wind to blow out the pilot.
+ 328 others found this useful
Thanks for the feedback!

What should you keep your water temp at on hot water heater?

105 DEG F if it is used by the elderly or children 140 For residential dish washers 160- for commercial dishwashers and 180 Deg F for sterilization in lieu of chemicals Check

Why does your pilot light keeps going out on your gas heater?

The pilot could be dirty and may be too weak to heat the thermocouple properly. Most of the time it comes down to replacing the thermocouple. ANS 2 The thermocouple costs

Why does your water heater keep going off?

If you mean that a gas hot water heater (HWH) has the flame go out (located beneath the HWH tank.) Then this is the normal operation whenever the temperature reaches the set p

How do keep the pilot on in my gas heater?

Depress pilot valve, hold in while lighting, hold in for 2 minutes while lit. Continue to hold pilot valve in while rotating the gas control to the "on" position. If the pilot

How do you light a gas hot water heater?

The detailed directions are printed on front of EVERY gas regulator. - However, in general, turn regulator switch to OFF for 2 minutes, then to PILOT and depress for one minut

Why does the pilot light keep going out on your hot water heater?

The thermocouple is going bad. The thermocouple is the small tube that sits in the flame from the pilot light and goes back to the gas valve. They are easy to replace and cost

Why does our gas hot water heater have insufficient hot water?

There are a few possibilities. One is that the water heater is not large enough for the demand put on it. Another is that it is not turned up high enough. Another is that your

Why does my pilot light keep going out on my hot water tank?

try changing the "thermocoupler"( not sure of the spelling) The piolit light heats the thermocoupler. looks like a little metal rod that sits above or right next to the piolit

What should you do if your gas water heater is not producing hot water?

    Answer 1     (1) the gas is cut off; (2)the pilot light blew out and is not igniting the burner; (3)the thermostat is set too low for your requirements;

Is gas escaping out when the water heater pilot goes out?

No, that is part of the function of the pilot light. To light the burner and to keep the gas valve open. The thermocouple sits in the flame of the pilot and produces a small e

Why is the gas hot water heater flowing water out the valve?

sounds like may be to much heat. if its coming out of the pressure relief valve located on top.turn heat down, you said coming out the valve i thinking you mean the valve on t