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I removed the thermocouple and gas line assembly to get at thermocouple easier but can't seem to turn the nut holding it in off

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i removed the thermocouple and gas line assembly - 4ac663cd-a993-45a9-92a8-6a7360118aa7.jpgI am not positive I understand you, however I am hearing that you removed the thermocouple to get at it better so to remove it? I am sure this was wrong, the issue is removing a rounded nut? use vice grips, robo grips etc

Posted on Oct 19, 2013

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SOURCE: need new gas line for pilot light, end split,

Hello, you can purchase a thermocouple and gas tubing at any heating and cooling supply store.

Posted on May 22, 2012

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My pilot went out last night and every time i light it the pilot wont stay lit every time i let go of the nob to turn on the on position the pilot goes off can you tell me the problem if you can. thank...


It sounds to me like you need to change thermocouples.If the thermocouple is bad it will not generate enough millivolts to hold gas valve open when you release the pilot light .If you are not sure of what the thermocouple is it is a round metalic rod that is mounted right in front of the pilot light.It should be set so it is centered in the pilot flame.The other end of it is connected to the gas valve.
They usually are fairly easy to change so if you want to you start by turning the gas valve off and unscrewing the nut for thermocouple from the gas valve.It is the small copper colored line.The thermocouple slips into a holder on pilot assembly so to remove it just gently pull it back out of the retainer.Replacements can be purchased at most hardware stores. They come in various lenghts so get one at least as long as the one you remove.
Install new thermocouple in retainer and thread into gas valve being careful not to cross thread it. Turn gas valve back on and light pilot. Make sure to get it centered in pilot flame. When it is setting correctly the tip will be red hot. Best of luck and thank you.

Mar 29, 2011 | Vanguard Heating & Cooling

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Sunjoy L-PH 018PS Patio Heater pilot failure repair


What is likely happening is that the pilot flame cannot reach the thermocouple. This is usually caused by corrosion or other blockage of the gas to the area where the pilot lights. Thus resulting in a small flame or no flame on the side the thermocouple is located. Fix this by cleaning out the corrosion or other blockage in the pilot assembly. I have found that small spiders like to make their homes here which causes the blockage of the gas for the pilot. The pilot assembly has three parts to it. The ignitor electrode, the pilot light tower, and the thermocoupler. The ignitor electrode has a wire that goes from it to the push button ignitor. The pilot tower is located in the middle and has a gas line going to it from the gas valve (control knob). The thermocoupler stands next to and on the opposite side of the ignitor electrode. It also has a copper line from it to the gas valve.

Unfortunately, the Sunjoy you have, which is the same model of two I have to keep running, is difficult to service. Parts are not readily available either so be careful when you take it apart. They do not sell the individual smaller parts in this model and therefore make you buy complete assemblies.

To clean and service the pilot assembly, remove the screws holding the front plate on where your control knob is. Once that is removed you can see the back of the ignitor, it is black and has one wire coming from it leading up to the ignitor electrode. You will also be able to see the small gas line from the gas valve going up to the pilot tower and the small copper line from the gas valve to the thermocoupler. That assembly is what you need to get to, to clean.

You do that by removing the top canopy by removing the three screws holding it down. Once that is removed, remove the center nut on the heat exchanger (the part that heats up with all of the little holes). It is located on the top and in the center of the heat exhanger. Then remove the three screws that are located around the bottom of the heat exchanger that connects the collar to it. You should be able to remove the heat exchanger now. Tilt the whole heater2_bing.gif down and prop the neck on something so you can work on it.

If you look in the top you will be able to see small metal box covering the pilot assembly. This is held onto the pilot assembly with two screws. Remove those screws and carefully remove the box. Now remove the two screws that holds the pilot assembly to the collar (located on the outside of the collar). The gas and copper lines will hold it up. If you look at the pilot assembly from the top you will see one screw holding the ignitor electrode to the pilot assembly bracket. Remove that screw, unplug the wire from the ignitor and remove the ignitor electrode from the assembly. Be careful not to break this and I am having you remove it so that you do not break it.

Now remove the nut that holds the thermocoupler onto the pilot assembly bracket and pull it out of the bracket. The copper line will hold it up and be careful not to kink the copper line. Take a piece of sandpaper and clean the outside surface of the thermocoupler. Corrosion on the thermocoupler could cause it to fail which will cause the pilot not to stay lit. I have not had one do that yet but it could happen.

Now, remove the gas line from the bottom of the pilot tower so that the tower and bracket are in your hands. Put it down and put the heater back up straight. Hook up your gas and turn the gas on. Now, press the control knob on the pilot setting to make sure you have gas coming out of the gas line that feeds the pilot. You should be able to hear, feel and smell it. If not you have a regulator problem or an empty tank. Turn off your gas, remove it from the heater and tilt the heater back down.

Take your pilot assembly, you will see a circular top to the pilot tower that is held down with really small metal ears. Carefully bend the ears back with a needle nose pliers so that you can bend the top of the tower back. Only bend it back far enough to clean the inside of it with a bent wire and compressed air or something. If you look on the lower side of the bracket, above where the gas line is threaded on you will see a hole that goes all the way through the assembly. This hole regulates the pilot gas pressure and allows the gas to mix with the air before it burns. Make sure that hole is clear of debris and take wire or something and thread it through the hole up through the top side of the tower.

When you have it clean, reconnect the gas line, thermocoupler and ignitor electrode. Once reconnected and before screwing the assembly back to the collar, I set the heater back up right and reconnect the gas. I then light the pilot to make certain you have a good strong pilot light generously touching the thermocoupler. The pilot should stay lit after holding the button in for a few seconds. Do not turn the heater on past the pilot area without the heat exchanger on or you might singe your hair. If the pilot works the way it is supposed to, turn it off, disconnect your gas, tilt the heater back down and reassemble it following the intructions in the opposite manner.


on Mar 24, 2010 | Heating & Cooling

2 Answers

I have a 40 gal. Whirlpool Water Heater and the pilot light will not stay on. I light it, but it will not hold (stay on) The heater was purchased in Aug 2003. Model No. FG1F4040SNOV. Any ideas?


The thermocouple has gone bad.
You will need to replace it. The video at the link below is a good overall view.
I would use soapy water for the leak test mixed at about 90 to10 (soap to water.
Also when you have the assembly removed clean the area with a vacuum and clean the assembly also.

Take the old thermocouple out before you go the the store to replace it as the do come in different sizes/lengths


http://videos.howstuffworks.com/discovery/34524-gimme-shelter-replacing-a-thermocouple-video.htm

Feb 03, 2011 | Whirlpool Water Heaters

1 Answer

Can't get the pilot light to start


Is this the newer style with closed combustion chamber. If so I would check to make sure that spark ignitor is working. If not it will need replaced. If ignitor is workingthen loosen compression nut on line to pilot and temporarily depress button on gas valve to make sure you have gas at that point.If you have gas there and tighten compression nut to pilot back up and it still won't light then you will need to remove screws that hold cover on burner compartment.Shut off valve to gas supply and remove gas line from gas valve remove pilot and thermocouple lines. Slide burner out ofcompartment and clean it .Remove nut from bottom of pilot assembly and clean out pilot orifice. Blow through pilot line to make sure it's all clear
Reassemble everthing using teflon tape or pipe joint compound as needed.Turn gas supply valve on and check for leaks.Set gas valve control to pilot and depress pilot button and hold. While you are holding button done push spark ignitor every few seconds until it lights. thank you and good luck

Dec 22, 2010 | Rheem 50 Gallon FVR NATGAS Water Heater...

1 Answer

I WOULD LIKE TO REPLACE MY THERMO CUPPLING


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=ebe6534afeavw.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.

Dec 06, 2010 | Heating & Cooling

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

3 Answers

Sunjoy L-PH018PSS Patio Heater Replacement Parts


What is likely happening is that the pilot flame cannot reach the thermocoupler. This is usually caused by corrosion or other blockage of the gas to the area where the pilot lights. Thus resulting in a small flame or no flame on the side the thermocoupler is located. Fix this by cleaning out the corrosion or other blockage in the pilot assembly. I have found that small spiders like to make their homes here which causes the blockage of the gas for the pilot. The pilot assembly has three parts to it. The ignitor electrode, the pilot light tower, and the thermocoupler. The ignitor electrode has a wire that goes from it to the push button ignitor. The pilot tower is located in the middle and has a gas line going to it from the gas valve (control knob). The thermocoupler stands next to and on the opposite side of the ignitor electrode. It also has a copper line from it to the gas valve.

Unfortunately, the Sunjoy you have, which is the same model of two I have to keep running, is difficult to service. Parts are not readily available either so be careful when you take it apart. They do not sell the individual smaller parts in this model and therefore make you buy complete assemblies.

To clean and service the pilot assembly, remove the screws holding the front plate on where your control knob is. Once that is removed you can see the back of the ignitor, it is black and has one wire coming from it leading up to the ignitor electrode. You will also be able to see the small gas line from the gas valve going up to the pilot tower and the small copper line from the gas valve to the thermocoupler. That assembly is what you need to get to, to clean.

You do that by removing the top canopy by removing the three screws holding it down. Once that is removed, remove the center nut on the heat exchanger (the part that heats up with all of the little holes). It is located on the top and in the center of the heat exhanger. Then remove the three screws that are located around the bottom of the heat exchanger that connects the collar to it. You should be able to remove the heat exchanger now. Tilt the whole heater down and prop the neck on something so you can work on it.

If you look in the top you will be able to see small metal box covering the pilot assembly. This is held onto the pilot assembly with two screws. Remove those screws and carefully remove the box. Now remove the two screws that holds the pilot assembly to the collar (located on the outside of the collar). The gas and copper lines will hold it up. If you look at the pilot assembly from the top you will see one screw holding the ignitor electrode to the pilot assembly bracket. Remove that screw, unplug the wire from the ignitor and remove the ignitor electrode from the assembly. Be careful not to break this and I am having you remove it so that you do not break it.

Now remove the nut that holds the thermocoupler onto the pilot assembly bracket and pull it out of the bracket. The copper line will hold it up and be careful not to kink the copper line. Take a piece of sandpaper and clean the outside surface of the thermocoupler. Corrosion on the thermocoupler could cause it to fail which will cause the pilot not to stay lit. I have not had one do that yet but it could happen.

Now, remove the gas line from the bottom of the pilot tower so that the tower and bracket are in your hands. Put it down and put the heater back up straight. Hook up your gas and turn the gas on. Now, press the control knob on the pilot setting to make sure you have gas coming out of the gas line that feeds the pilot. You should be able to hear, feel and smell it. If not you have a regulator problem or an empty tank. Turn off your gas, remove it from the heater and tilt the heater back down.

Take your pilot assembly, you will see a circular top to the pilot tower that is held down with really small metal ears. Carefully bend the ears back so that you can bend the top of the tower back. Only bend it back far enough to clean the inside of it with a bent wire and compressed air or something. If you look on the lower side of the bracket, above where the gas line is threaded on you will see a hole that goes all the way through the assembly. This hole regulates the pilot gas pressure and allows the gas to mix with the air before it burns. Make sure that hole is clear of debris and take wire or something and thread it through the hole up through the top side of the tower.

When you have it clean, reconnect the gas line, thermocoupler and ignitor electrode. Once reconnected and before screwing the assembly back to the collar, I set the heater back up right and reconnect the gas. I then light the pilot to make certain you have a good strong pilot light generously touching the thermocoupler. The pilot should stay lit haver holding the button in for a few seconds. Do not turn the heater on past the pilot area without the heat exchanger on or you might singe your hair. If the pilot works the way it is supposed to, turn it off, disconnect your gas, tilt the heater back down and reassemble it following the intructions in the opposite manner.

The ignitor problem:
It is probably corroded in the cap (which is also the switch) or inside the ignitor where the battery goes at the spring. Spray these areas out with WD40 which will clean the corrosion out and try it again with a new battery. If it does not go click click click when you press the button you may have to take the ignitor out. Unscrew the cap and then the little black plastic collar which secures the ignitor to the collar. This should allow you to remove the ignitor by turning and maneuvering it out of the collar past the gas valve. Put the battery back in and replace the cap. Press the button to see if it works. Be careful it may shock you causing you to squeal, cuss and likely drop the ignitor.

I just had one do this to me. For some reason the little black collar that secures the ignitor to the heater collar would not screw all the way in. This would not allow cap to fully screw on and therefore would not allow contact with the battery to the contact inside the ignitor near the spring. Tighten it up as best you can so that contact can be made when you press the button. I believe this is one part you can order from Sunjoy separately if you cannot get yours to work....Good Luck

Jan 09, 2010 | Uniflame 200209 Open Flame Patio Heater

1 Answer

Does'nt work


The most likely problem is a bad thermocouple. Pilot-equipped appliances have a thermocouple to make sure the pilot is lit before turning on the main gas flow. You'll see the end of the thermocouple looking like a metal rod sticking into the pilot flame. Replacing the thermocouple is not difficult. There's a nut that holds the thermocouple into the pilot assembly, and another that holds the thermocouple lead into the main gas valve. Universal replacements are available for under $10. Several websites have good step-by-step instructions if you need them.

Dec 17, 2008 | Heating & Cooling

1 Answer

Whirlpool water heater thermocouple


Nope, turn off all gas to the heater. Remove the enclosure containing the burner. Disconnect both the gas line and the thermocouple line from the gas valve and pull out the whole burner assembly. Take a pair of needle nose plyers and remove the thermocouple from the pilot assembly. Install the new one and reverse the removal procedures to put it all back together. Check to make sure there is no gas leaks and this is important, The nut to turn off the burner tube from the gas valve is reverse threads. Righty to turn off, Leftie to tighten.

Nov 20, 2007 | Heating & Cooling

24 Answers

Patio heater won't stay lit


I had this same problem - here's how I fixed it...

First: Never modify the safety features of your heater as has been suggested elsewhere on this forum. Modification of these features may allow the heater to work, but greatly compromises the safety of anyone near the heater.

The problem with the heater shutting off is most likely due to not enough gas flowing through the pilot orifice (this orifice is almost as small as the diameter of a human hair). When this happens, the pilot flame does not burn vigorously enough to activate the thermocouple. Hence, the thermocouple shuts off the gas and the burner goes out - usually you'll hear one "click" when this happens.

This is a maintence thing - meaning you may have to do this as a seasonal activity.

Here we go....
(1) Shut off the gas at the tank - or remove the tank entirely.
(2) Remove the screws that hold the burner shield and top shroud from the unit - set it aside.
(3) Remove the control knob - it just pulls straight off.
(4) Remove the panel immediately behind the knob you just took off. This will expose the gas valve assembly.
(5) Remove the cover that encloses the bottom of the pilot light/igniter (assembly). This will expose the bottom of the pilot assembly.
(6) Remove the screw holding the pilot assembly - there is a small hex nut on top, but under the burner that you'll have to hold to prevent it from turning. This will free the pilot assembly allowing you to gently pull it out of the pilot assembly housing. DON"T pull hard or you may break the gas line or thermocouple.
(7) Remove the hex nut that attaches the gas line to the pilot assembly and gently pull the gas line out. At this point, to ensure you have gas flowing through the pilot gas line, you may want to re-attach the gas tank, turn it on, gently move the gas line as far away from the spark ignitor as possible, temporarily replace the control knob, and turn the knob to the "Pilot" position & push it in. DO NOT DO THIS ANYWHERE NEAR AN OPEN FLAME OR A LIGHTED CIGARETTE! You should be able to hear a hissing sound as the gas flows. If you do not hear it, the problem may be with your gas valve, and if that's the case, I'm sorry this procedure likely won't solve the problem.
(8) Remove the pilot light tube (orifice) from the mounting bracket. There's a hex nut on the back side that holds it in. Be careful not to damage the hex nut or the threads. You'll need a pair of pliers (to hold the bracket) and an adjustable wrench for the hex nut. Make note of the orientation of the pilot burner diverter so you can put it back together the same way it came apart.
(9) Using a blast of compressed air, blow air through the pilot orifice. You should be able to see just a very (and I mean very) small pin-point of light through the pilot burner. If not, use a single strand of very fine wire - like one strand from a 18 gauge braided electrical wire - and run it through the pilot orifice. Carbon build-up can clog this orifice - which can prevent the pilot from burning vigorously enough to heat up the thermocouple. Cleaning it out periodically will likely solve the problem.

Put everything back together in reverse order as noted above - making sure your gas fittings are tight and don't leak. Once it's all back together, light the pilot flame as normal and once the thermocouple heats up, the heater should work like a charm.

Oct 03, 2007 | Williams 2509612 Ceramic Mid-Size Heater

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