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Posted on Dec 14, 2008
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Water heater pilot light

Pilot light gets blown out when main burner is lit

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  • Ken Bledsoe May 11, 2010

    I just fixed this one symptom just like this one. Well I didn't fix it I told home owner to contact gas company because the gas supply to house was not consistent. He called them up and that day he called they came out and replaced the gas meter. Now his problem was real close to this one except his furnace would cause the pilot to be blown out. let me know if that helps.

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  • Expert 44 Answers
  • Posted on Dec 15, 2008
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It also sounds as though the pilot injector could be blocked so when the boiler comes on it extinguishes the pilot & then when the burner goes off boiler shuts down, or also the pilot rate maynot be set right, so when the main burner kicks in it robs the pilot of the gas it requires.
It could be that, or there is lack of ventilation for the boiler, so you get flame lift off when the boiler fires?

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Related Questions:

0helpful
1answer

How do I get the water heater going so we can have hot water
  1. Open the up the door or the cover over where the pilot light is accessed and also located at . The pilot light will be located under the gas valve and some water heaters just have an open gap instead where you can see the pilot lights burner is.
  2. Using either a flashlight or a headlamp to find out where the burner i located inside. 2 small gas tubes will lead to it. You will want to watch it as you are working.
  3. Turn the gas knob to "Pilot,"and then press and hold it down. This will begin to start the flow of gas so you can light the flame. Some water heaters do have a separate button for pilot mode, mostly it will be a colored red one which you will have to press and hold.
  4. While still holding the gas down light that pilot. Some water heaters do have a red or black igniting button and some others will have to be lit manually with a lighter than is longer.
  5. When the flames do ignite continue to hold the gas knob or button down for a full one minute. Then slowly release it and make sure that the light is still lit and is still on.
  6. Turn the gas knob to On and then listen for the distinct "whump" or whooshing sound of the main burner igniting.
  7. Replace the cover.
Read full answer
May 21, 2022 • Water Water Heaters
0helpful
3answers

AO Smith 2012 water heater model GCV 40 300 pilot lights but then goes out. Won't stay lit
You only need the thermocouple replacing. It is the safety valve that won't let the main burner light unless the pilot is fully lit. As it is gas, you should have a gas certified technician replace it.
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Jun 19, 2021 • Water Water Heaters
0answers

Richmond gas hot water heater. After I light pilot and main burner why does it flame out in 15 seconds?
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Be the first to answer Sep 10, 2015 • Water Water Heaters
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Replaced thermo coupler on ricmond hot water heater...light pilot.light main burner..15 seconds later both flame out
if you just light pilot will the pilot stay lit for 5 minutes or more?
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Sep 08, 2015 • Water Water Heaters
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2 year old BW Hot water heater with honeywell LED Thermostat- main burner lights but won't stay lit- Why?
Check for error codes and service manual on following link:
http://waterheatertimer.org/How-to-troubleshoot-gas-water-heater.html#intellivent

Replace gas control valve
http://waterheatertimer.org/How-to-replace-Honeywell-gas-control-valve.html

Gene:

Water Heater Timers Save Money

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

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Aug 04, 2015 • Honeywell Water Heaters
0helpful
1answer

I can get the pilot light to stay on but main gas burner won't fire up
If the pilot is lighting and the thermo couple is in the fire and turned red and the pilot still does not stary on change the thermo couple. They are available in any home improvment store.
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Nov 04, 2014 • RTO Suburban Rv Water Heater Dsi Gas Valve...
1helpful
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Pilot won't stay lit
What color is the pilot flame? Yellow/orange or blue? Look at the tip of the thermocouple where the pilot flame is heating. It should be a smooth round tip. If the tip is partially burn't off or ridgid, replace the thermocouple. After the pilot is initially lit, does the burner come on too? Take a flashlight and look up inside the water heater above the burner. Do you see a lot of soot build-up? Light a match at the top of the water heater at the draft diverter (it attaches the venting to the water heater) and blow it out and see if the smoke gets sucked into the diverter or blown out. It should get sucked in. If not you may have vent blockage or soot build-up.
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May 15, 2010 • General Electric GE SmartWater Household...
4helpful
2answers

Pilot light keeps going out
Either the pilot light orfice is dirty, and you will need to pull it out and clean it, or the thermocouple is bad. If the pilot goes out as soon as you let the button go then it is most likely the thermocouple. If the pilot stays lit for a few days or hours then you will need to clean the pilot orfice, heres how:
1 turn off the gas supply
2 unhook the main burner gas line from the thermostat, this is the line that goes to the burner
3 unhook the pilot supply line it is usually next to the main burner line
4 unhook the thermocouple from the thermostat
5 remove the burner assembly
6 take the orfice out of the pilot line and clean it out by blowing thru it, use an air compressor if needed.
7 reassemble and light pilot
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Apr 08, 2010 • Reliance & 30 Gal LP Gas Water Heater
3helpful
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Problem with hot water from Vokera Excell 80sp boiler
Hi - hope someone can help. I have a VOKERA EXCEL 80SP combi boiler and been without hot water/central heating for two days. The pilot light is on, the fan is on, but boiler not triggering once the hot water tap is turned on.
Hopefully someone come to look at it today but hoping for some advice. Anyone else had this problem?
Thank you.
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Dec 21, 2009 • Water Heaters
0helpful
1answer

Water heater pilot wont stay lit
try cleaning the top of the pilot light jet if you can get to with small brush then blow it clean with a compressor.
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Aug 30, 2009 • Rheem 50 Gallon FVR NATGAS Water Heater...
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