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Why does your gas hot water heater pilot keep going out?
- 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.
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Answer No because water heaters have a safety valves and when the pilot light goes out the safety valve shuts off the gas
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… less than $19 and can be changed in about 30 minutes. Best to first Shut off gas, and remove your one, then take to the store for comparison. There are 5-6 different types but all very similar. Honeywell Universal is good for many heaters. This is essentially a thin copper tube 18 -30 inches long, with a metal bulb at one end and a hollow nut at the regulator end. Many good instructions on internet about how to do it
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… flame doesn't stay lit, it may be due to a bad thermocouple, a device that looks like a thick, solid copper wire whose tip is in the pilot flame and whose other end is screwed into the gas valve. You would need to get a replacement thermocouple from a hardware store or have a handyman install a replacement thermocouple for you. Thermocouples typically last 6-8 years if the pilot flame burns continuously.
Spillage excessive condensate bad thermocouple draft
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 minu…te, then light pilot or press clicker till it lights. Keep PILOT pressed for 2 more minutes then slowly release it. If it stays on then turn main switch to RUN or ON.
low back, spillage, or a bad thermocouple.
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… light. when the thermocoupler is heated it produces a millivolt of electricity the power it produces is what keeps the gas vaulve open. this is a safety feature, if the piolit light goes out the gas will shut off so that the house does not fill with gas. This is why when you light the piolit you must manually hold the button in until the thermocoupler heats up. Gas appliances should only be worked on by licienced pros, don't risk the lives in your house in order to save a few bucks
Right below the thermocouple if applicable
"Gas hot water heater"? Why would you want to heat water if it's already hot? Down draft (spillage) Defective thermocouple Dirty fuel tube supply Improper venting Excessive hu…midity Excessive condensation No enough FREE AIR for proper combustion To much blow back When in doubt hire a Licensed Master plumber /gas fitter
"Pilot" is only when initially igniting your water heater. Some manufacturers state to leave it on "Pilot" for so many minutes before turning to on but this is only temporary.… It should be then turned to "On" and then if you have a low, medium or high setting or degrees adjustment, adjust the temperature setting. Remember that most local plumbing codes and water heater manufacturers recommend a temperature of no more than 120 degrees F.
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… $6 to $8. For health and safety the failing part should be replaced without delay by a competent gas engineer.
Most likely it is the thermocouple going bad. The thermocouple is the small tube that sits in the pilot flame and runs to the control valve.
there are two ways, increase the pilot pressure if possible or redrill the pilot hole with a specialty set of orifice bits...many times its easier to order the orifice youre l…ooking for
You shouldn't need to clean the pilot. If it frequently goes out you need anew thermocouple.
My direct vent furnace pilot light issue was the glass viewing port was missing allowing room air to blow out the pilot light. Replacing the missing glass which stopped the …draft, fixed the problem.
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You turn the regulator to OFF, wait 2 minutes, then turn it to 'Pilot' and depress it. Have a long match as is used for BBQ's , reach in and hold match where flame shield is a…round pilot. It should light immediately, BUT keep holding the button depressed for 2 minutes. If it goes out when you release the button then you have a problem with the thermocouple and the easy solution is to change it. Your appliance might have a built in piezo ignition (spark), if so there is no need to use a match. Follow the steps above, not using a match and you should press the "spark" button to light the flame. You should hear a click, click sound from the spark, then after about a minute, release the button and turn it to 'ON' - you should now hear a whoosh as the gas ignites. Keep your face away from the appliance for safety reasons.