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Re: pilot light ok when release finger pilot goes out
Your thermo couple is bad. Thats the copper tube that goes from the gas valve to the pilot. It senses thats the pilot is lit. Thats not working thats why it goes out. You can get a new one at lowes or home depot for about ten bucks its pretty easy to change just dont kink it when you put it in. It will just plug in at the pilot and screw in at at gas valve.
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If it's not electronic. Turn the dial to pilot and push in the pilot button and hold it, then put a flame to the end of the tube under the water heater, continue to hold until the thermocoupler warms up and release. If it goes out do it again only hold the button down longer. The turn the dial back to on..
If pilot stay lit, then thermocouple is working. If pilot will light, then you have gas. If pilot goes out when pilot button is released, then thermocouple is next suspect.
Thermocouple tip must sit in pilot flame. The pilot light heat applied to two different metals inside thermocouple causes small current. The current travels back to gas control valve through copper line. If the gas valve receive this current, then a magnetic switch stays open and allows gas into the gas control valve. The magnetic switch is on the end of the red button you push down when lighting pilot. Essentially the red button is an override to the magnetic switch. If the gas control valve does not receive the current, then the magnetic switch does not stay open when you release the red button. When replacing thermocouple, note that it is not screwed very tight into the gas control valve. Finger tight + 1/4 turn. If it is overtightened, then the small thermocouple current shorts out against the gas control body.
pilot light keeps going out! more then likely its the thermal coupling doing this. if bad it shut all gas to heater for a safety measure. just shut power off, then turn gas off and replace it. then you should be ready to go. to relight heater hold down on gas vavle knob in the pilot position, hold down and light it at the coupling where gas comes out. when it is lit, continue to hold down for 60 seconds. release knob very slow. then if its lit, turn to the run position. if flme goes out, wait at least 5 minutes to expel the gas fumes and turn to pilot and try again. good-day !
Are you holding the button down for a minute or so after you light the pilot before releasing the button?
If so, almost certainly, your thermocouple is bad. This is the long tube which runs from the control box to the pilot flame. Remove this tube, take it to the hardware store and get an exact replacement.
Once the thermocouple is replaced, your pilot light should stay on.
This is more than likely the thermocoupler. The thermo Coupler is a solid cylinder shape with a point on one end and a thick aluminum wire on the other the tip is situated so that it is in the pilot flame. When it reaches a certain temperature from the pilot it sends a signal for the gas valve to stay open and keep the pilot light. If it does not send the signal the valve closes and shuts the gas off for safety. Solution first make sure you hold button long enough to heat Thermocoupler (about 30 sec) if pilot still goes out then replace Thermocoupler. Can purchase at most hardware stores and all plumbing shops.
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The question is? I'll assume you cylinder is the water heater, right?
On the heater (water) you will find or see the red controls and a sheet metal cover over a hole. Remove the cover and this is where you light the pilot light. Press down on the red dial and turn it to pilot. In that position you will be able to press the red button . Geyt a long match or bbq lighter, then, holding down the red button dow for a minute or so and place a match or lighter into yhe area where the lines go The flame will catch the gas and lite the pilot if yo simply move your glame around. When the flame catch on the pilot, continue holding the button down for sveral minutes until the buld the flame isheating gets hot. Then release the buton and turn the main dial to on. The main burner should fire up. If not, and the pilot goes out, repeat the process. The bulb in the pilot flame is a thermocoupler that shuts all gas off if it doesn't detect a pilot flame, so hold the button down longer. If the pilot goes out when you release the button, The thermocoupler is no good and needs replacing. Good Luck_Ned_
Make sure the window is big enough. Ok, not funny. Turn the gas on and leave set for 24 hours Light the pilot light and make sure the thermocoupler is at the tip of the flame. hold pilot until the coupler bulb is nice and hot , release the pilot button nice and slow. If the pilot goes out, The thermocoupler is defective. If this sneaking up on it works, then fire up the main burner. Letting the unit sit under the gas pressure for24allows a thorough purging of the main valve. and saturation of any air pockets. Lighting one in cool temperatures is somtimes difficult becase the gas is heavier or more dense than under warm conditions. Sounds dumb, I know. But give it a try and let me know how it goes.Good Luck, Ned
Remove the cover then the access cover, then you can see inside, the pilot light is probably out.
If out turn the gas off, then get a long match, grill lighter,or piece of paper ready to light, you should be able to see the little thin gas line that runs inside the tank and see where it connects to,that is where you need to light, now that you see where to light, turn gas knob to pilot, and press down and at the same time light the pilot. ( blow into the pilot area before putting match inside to make sure no gas has built up inside) Hold down the knob for a minute then release, if pilot goes out try again and hold down longer, if you hold it for 3mins and it does not stay lite, the thermocouple is bad and you will have to replace it.
One of the proper ways to light a gas water heater, is to turn the black knob to Pilot, put a match to the end of the pilot light, while holding the match there, push the red reset button down and hold the match & the reset button down for one full minute. Then, release the reset button and turn the black knob to On. This should keep the pilot light on.
hello!! if you changed the thermocouple & the pilot still goes out !! could be a thermostat ( the electromagnet pilot safety ) goes bad !! make sure pilot is clean & should be sharp BLUE pilot !! not yellow & soft !! also hold down the button light the pilot use a digital volt meter set on dc milivolts a brand new thermocouple should test @ 30 milivolts+ - ! & if you have new style water htr with sealed combustion the thermocouple has a safety part of it ! change the thermocouple & make sure your vents for combustion air around the bottom of the water htr has lint & dust built up !!! kiddbrother i work for a gas company doing service !!