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I have an old gas heater when i go to light it the piolet light wont stay on when i turn the knob to make it hotter.

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Old heaters that have a "standing" pilot light that burns all of the time use a device called a thermocouple. The thermocouple sits in the flame of the pilot and when heated by the pilot, produces a very small amount of electricity (approx 30 mV) which the heater interperets as proof that the pilot is burning and indicating that it is okay to turn the main burner on. The thermocouple is a part that wears out and when it fails causes the exact problem that you are describing.

Posted on Jun 26, 2008

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Posted on Jan 02, 2017

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Clicking noise Rinnai Avenger Gas heater


Is sounds like it could be the automatic ignition. If the sound only happens when you are pressing or turning the knob, I would say that is all that it is. Most gas heaters have an ignition switch under the knob. This triggers the ignition to try and spark. light the gas when the knob is depressed.

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We have a Rinnai R82VF LPG room heater. When you press the gas button and then turn the temperature control knob to IGN, it lights. When you release the temperature control knob, it springs back to OFF and...


Part of the problem may be, that when you turn the control knob to ignition, you're not holding it in long enough for Thermocouple or Thermopile to thoroughly heat up after the pilot lights. You should hold the bottom down for 30 seconds to a minute, to allow it to heat up. Then, when you slowly release it. If the pilot remains lit, turn the knob to the desire position.

If the above doesn't solve the problem, the Thermocouple or Thermopile (aka Pilot Generator) will need to be replaced.

Hope this helped you. Cheers

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1 Answer

I have a sta-rite pool heater. If I turn off the gas, when I turn it on back does it turn on automatic or do I need to do something?


Look at the regulator, if there is a pilot position to turn to knob to than yes you will have to turn the knob to pilot and push in the knob light the pilot and after approx. 45 to 60 sec. release the button a turn the knob to on. The pilot will be light now if its working now and you should be able to see it burning a small flame.
If you have power that is connected to the heater it could be electronic ignition and will light by its self when turn on.

Jun 30, 2011 | Heating & Cooling

1 Answer

Do I need to replace the thermocoupling on my Reliance 501 gas water heater? Model is 5 30 NOMT7 C. Recently, I've noticed an intermittent problem with the the hot water not staying consistent. So we're...


The thermocouple is a safety for the gas valve. It tells it the pilot light is lit. If your pilot light is not going out and the burner fires when you turn up the thermostat, it is all working as it should. In other words, if you don't need to re-light the pilot, your thermocouple is OK. Turning up the temperature of the water is a good idea, just be careful not to burn anyone with the hotter water. You mite want to try a water saver shower head. Some don't throw enough water to get the soap off, but I bought one that can be turned to adjust flow and we have been happy with it. If I missed what you need from this, please let me know. Roger

Apr 10, 2011 | Heating & Cooling

1 Answer

When i unplug my rinnai heater does that turn off the pilot light?


If it's a Vent-free (Vent-less) heater, not it does not turn OFF the pilot light. If it is a Vented Heater, yes unplugging the heater will turn the pilot light OFF. If you want to turn the pilot off on either unit, the best way to do it is with the Gas Valve, Pilot Control Knob. Turn the knob from the ON position counterclockwise to the OFF position and the pilot flame will go out.

Hope this helped you.

Apr 09, 2011 | Heating & Cooling

1 Answer

How do I make the water hotter with my Bosch ariston point of use water heater?


There is an oval cover held on by a screw. remove that and you will find a black box with a small knob on it. Turn it to a hotter setting and then put the cover back on.

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1 Answer

Wall mounted 3 grate gas space heater: VIN # 41201. ser. # 1410915. Piolet light won't remain lit to be able to light grates. Also need control knob (if avail) for same model.


your pilot has dust in it. Use a drinking straw and blow air across (not into) the pilot opening. this will remove the small particles of dust that are stopping up the membrane inside the opening. THis will make your pilot flame bluer and hotter and keep the thermocouple hot enought to produce enought magnetism to hold the gas valve open.

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1 Answer

I have old rheem ruud hot water tank. it's down for 4 day's, i would like to get it started, but the thing i would like to find out is can i get it going by lighting it up by using lighter or not. The...


Yes you can light it with a BBQ type lighter (long enough).
If it lights and stays lit then you need to change the thermocouple (looks like a little pipe off gas valve)

In simplest terms, a thermocouple is a temperature sensor. Normally inexpensive, a thermocouple is standard on hot water tanks. If your thermocouple breaks or you feel it is not working properly, consider replacing it b?p=y23r90wnbq7oglkvtnbuhgyhrktxauzqpeoaddsf&t=18g7grtjm%2fx%3d1290445898%2fe%3d2143440281%2fr%3dacont%2fk%3d5%2fv%3d8.1%2fw%3d0%2fy%3dyahoo%2ff%3d2680761980%2fh%3dcg49imfjb250iibzzxj2zulkpsjzmjnsotb3tkjxn09nbgtwve5ivuhnewhys1r4yvv6cxbfb0fezfngiibzaxrlswq9ijq4mtmwnteiihrtdg1wpsixmjkwndq1odk4ota5njiwiia-%2fq%3d-1%2fs%3d1%2fj%3d6f060d4c&u=13gohjn6b%2fn%3df8a.bkwnpkw-%2fc%3d715481.14405591.14260180.13829426%2fd%3dlrec%2fb%3d6235626%2fv%3d1 lg.php?category_id=6&content_type=article&content_type_id=584031&key_page=1721642411054458764&site_id=1&bannerid=10089&campaignid=2945&zoneid=2&loc=1&referer=http%3a%2f%2fwww.associatedcontent.com%2farticle%2f584031%2fhow_to_change_a_thermocouple_on_your.html%3fcontent_type_id%3d584031&cb=ebe6534afe avw.php?zoneid=2&cb=1721642411054458764&source=&n=a14de4a9&slice=-1060-&dma=-0-&cty=-us-&content_type=article&content_type_id=584031&category_id=6&key_ad=1045292919&site_id=1&ad_pos=2&key_page=1721642411054458764&ac_url=http%3a%2f%2fwww.associatedcontent.com%2farticle%2f584031%2fhow_to_change_a_thermocouple_on_your.html rather than installing a new gas hot water heater.

Begin this project by shutting off the gas control knob on your hot water heater. Once you are sure that the gas is off, you should use a wrench to remove the nut that attaches the thermocouple to the gas hot water tank. This nut should appear to be securing a piece of copper tubing or other type of tubing. With the nut removed, you should also pull down on the tubing, dislodging it from the thermocouple.

Sometimes there is another nut that attaches the end of the thermocouple to the pilot bracket, if this is the case you should unscrew this nut as well. You can slide it down the tubing and keep it there until you need to replace it.

With the nuts that were holding the unit in place removed, you should be able to slide the old thermocouple out of the brackets that hold it to the hot water heater. You should then take it to a hardware or home improvement store and find a suitable replacement. Then follow these steps to install the new part and fix the hot water heater.

To change the thermocouple, you should press the end of the thermocouple into the pilot bracket as far as you can. If you had to remove a second nut to remove the old thermocouple, now is the time to replace that nut securely.

With the thermocouple in place, you should connect the lead to the control unit. Use the nut you removed in the beginning steps to secure the lead. You should then tighten it at least a quarter turn with a wench to make sure the lead is securely attached to the control unit of the gas hot water heater.

Now that the new thermocouple is installed on your gas hot water heater, turn on the gas shut off valve that you turned off earlier. You should be able to relight the pilot and the functionality of your gas hot water heater should be restored.

Nov 22, 2010 | Heating & Cooling

1 Answer

I have a Rheem gas furnace, model # RGAA-100C and need help lighting the pilot. The instructions on the metal plate tell me to set the valve to off, then to pilot, push the valve down until lit, and then...


Hi, follow what I say and it is very easy. The knob that says off, on, and pilot, is where you need to start. You don't want to turn it off now, as its been off for awhile now. Turn the knob slowly pushing down on it until you fill it go down. The knob will go down believe me. When this happens, keep holding it down as this is what starts the gas to the pilot which is back under the burner, under it. Just take a flash light and you can follow the aluminum tubing back and where it stops is where you light it with something long with a match in it or a small rolled up paper. Keep the knob down the whole time you are lighting it. When it lights, keep the knob pushed down for about another minute. Then slowly release the knob and the pilot should stay on. Once you have it on, turn the knob to on, not off. If you turn it the wrong way, it will go off and you will need to start over again. Once it stays on by itself, turn your thermostat up for heat and the burner will light and come on. Just remember that the pilot where you light it is where the tubing goes back under it, as the pilot gas goes through it. You will need a light. Look at the knob with a good light and it will tell you which way to turn it. In the pilot position, the knob will press down to let the pilot gas in, and you can reach back and light it. Then turn knob on. Pilot should stay light. Turn on thermostat and it will fire up. Let me know how it goes. You may have to try a couple of times.
Sincerely,
Shastalaker7
A/C, & Heating Contractor

Oct 05, 2010 | Heating & Cooling

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1 check power connection properly.

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