Can A Thermocouple Be Repaired

Gas Flame Thermocouple Repair FAQs
Troubleshooting & Replacement

• POST a QUESTION or COMMENT near thermocouples used on heating equipment & water heaters

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Thermocouple diagnostic FAQs for heating appliances:

Questions & answers on how to diagnose & repair or supplant a bad thermocouple or thermopile.

This commodity serial describes thermocouples, safe devices used on gas fired heating equipment.

We also provide an ARTICLE INDEX for this topic, or y'all tin effort the folio height or bottom SEARCH BOX as a quick way to detect data you need.

Thermocouples: Definition & Uses in Gas Fired Heating Equipment

These questions & answers about diagnosing, fixing or replacing thermocouples on building heating equipment were posted originally at THERMOCOUPLE REPAIR / REPLACEMENT.

Illustrated here: a typical gas fireplace thermocouple associates showing its principal components. This particular unit is a model 70K0 Thermocouple.

[Click to enlarge any image]

@DAVID PIMBLETT,

Cheque that the thermocouple is properly placed in the flame, that the flame height is normal, that the other terminate of the thermocouple is snug, and if there's goose egg there, either look through the diagnostics at THERMOCOUPLE REPAIR / REPLACEMENT https://inspectapedia.com/heat/Thermocouple_Replacement.php

or just try replacing the part.

Let me know if that works for you and if not we'll be glad to continue troubleshooting.

I have a Thetford refrigerator in my caravan. When on gas information technology lights ok with the spark but goes out afterwards 15 seconds. Information technology is a combined sparker/ thermocouple device just connected with wires .
Any advice please

We replaced the thermocouple and the airplane pilot calorie-free stays lit. But no heat. What is wrong?

Don

First let's make sure that the flame sensor is correctly position in the flame and let's brand sure that the end of the thermocouple that screws to the gas valve is absolutely screwed all the style in

I've seen that mistake cause a thermocouple not to work.

Just replaced the thermocouple and the pilot still volition not stay lit. Is at that place anything else i tin bank check or am I looking at replacing the entire controller? This is a 1994 Cozy Wall heater with a Honeywell controller. The pilot wouldn't stay lit and I was told that that is usually a thermocouple. Anything else i can cheque myself or is information technology time to phone call in a professional person?

Dennis

Can yous post a photo?

The typical gas thermocouple we describe hither uses a sensor and a thin copper tube - no electrical wires.

Though there may be wires connected at the gas valve, typically used to support spill switches.

Any thought what keeps called-for the thermocouple wires?
I replaced the thermocouple once and the gas control valve besides.
The water heater is 5 years former and suddenly it has started doing burning the wires.

Bob

I remember you mean millivolt, not volts, right? I 30 millivolt thermocouple is pretty much the current industry standard and should exist fine.

Tin can you utilise a 30 volt thermocouple when it calls for 24 volt thermocouple?

Lowering flame and "going out" could be an oxygen depletion sensor thinks the arrangement is unsafe.

Or your thermocouple sensor is non properly located within the flame.

Besides bank check that the other stop of the thermocouple tube is fully screwed in to the gas valve.

I put in a new thermocouple because when the pilot was lit and I turned it went out. Now information technology worked good for about fifteen minutes then acted like it ran out off gas (its non) as the flames got lower and went out.
What would cause that? I also bankrupt the bleeder flat bar off, would that cause it?
TIA

Renee

No, the thermocouple is a safety device that confirms that a flame is present and turns off the heater if the flame is not present or not adequate - thus avoiding pouring explosive fuel into an un-burned location.

A defective, damaged, or shorted-out wall thermostat, thermostat wiring, or heater control is where yous'd look fo rheat that won't plow off.

Use the search box in a higher place to find our commodity on Rut WON'T TURN OFF to read how to diagnose and fix the trouble.

My Dyna-glow vent free propane wall mountain heater, works great EXCEPT information technology will Non cut off when room reaches desired temperature . Does it need to accept thermocoupler replacex ?

Shsn,

Often the problem is that you need to manually concur the gas on long enough to purge air from the line.

Just installed a hearthrite gas wall heater and I tin't get it to light

Glen,

I expect you meet what many practice which is that the fitting may be opposite threaded. We warned virtually that in this article series.

If yous await in the commodity above you'll see a photo on which I accept placed an arrow indicating the direction that helps sort out where the you are loosening or tightening the fixture.

What blazon of female thread is the thermopile / thermocouple connectedness on a gas valve?

How practice I find out what the proper function is? It's a 30 yr old Heil-Quaker furnace and searches don't come up with compatible parts. I don't know if there is a standard for forced air gas furnaces.

I accept a Williams gas wall furnace and have a problem after vacuuming out any debris nosotros got the pilot low-cal to stay lit but now the furnace gets so hot the floor in front of the furnace can't exist touched. This has never happened earlier it seems the flame is very high inside the furnace. What could exist the problem

I'grand having a problem with my wall mount propane heater it will work perfect for a little and so everything goes out pilot and burners does anyone have a clue

I replaced thermocoupler know it stays lite only the burner doesn't come on.

Claudia

I don't know, although the situation you lot described could be unsafe. I don't have plenty information to exercise more make a wild guess. Perhaps when your heating arrangement is running it's use of combustion air or issues of return air is making the fireplace starved for combustion air.

Then if your fireplace has a safety device that detects improper combustion information technology could be shutting down.

Later on 15 minutes of my gas furnace being completely on and functuning perfect, the fireplace turns off past itself .why

Question: Help fixing a Gazco Studio 22 Gas Burn

(Aug 27, 2022) Thou. Godard said:

Hi. I'm badly in need of advice apropos my Gazco Studio 22 gas fire. By the bottle manifold, at that place'due south a 'normally open' transmission reset gas solenoid safe valve fitted. This valve shuts off the gas supply when electricity is sent to it in an emergency situation, and conversely, opens once again when the electric is off.

My question is this: if the electricity in the house fails, how would the solenoid work?

Surely a 'unremarkably closed' version would be correct (so when electricity fails, the supply is turned off)? All communication would exist greatly appreciated.

Reply:

KG

Almost gas fire airplane pilot or thermocouple controls are designed to "neglect safe" - that is, the thermocouple keeps the gas valve open ONLY when it is sensing the estrus from an adequate gas flame. The organization operates on a arrangement that mostly doesn't require an external electric power source.

Indeed take a expect at the gas fireplace thermocouple and airplane pilot flame assembly shown above on this page: you'll meet that there are no electric wires involved in the pilot flame sensor. (In that location will exist an electric wire, not shown, that connects betwixt a mechanical pushbutton and the piezoelectric gas igniter - a device used but for initial flame ignition.

At the Gazco (Stovax) website the company provides a product clarification for the Studio 22 Gas Burn that you mentioned - it is sold in several models.

Unfortunately ALL of the Gazco Stovax Gas Burn down 22 links to supporting documentation given at their website if you follow the company'southward obvious links to technical support will result in folio not found errors. Below I do include PDF copies of Stovax Studio Gas Fires that I could locate elsewhere including a manual for the Gazco Studio conventional flue fire.

You can contact Gasco - Stovax directly for technical back up in Devon:

Gazco , Osprey Road , Sowton Industrial Estate, Exeter, Devon EX2 7JG United kingdom of great britain and northern ireland
Customer Services: +44 (0)1392 261900
Technical Enquiries: +44 (0)1392 261950
Website: http://www.stovax.com/stove-fire/studio-gas-fires/studio-22-gas-fires/

• GAZCO STUDIO Conventional Flue MANUAL [PDF] (2008) For use in GB, IE (U.k. and Eire) COVERING THE FOLLOWING MODEL: Studio 1 conventional flue : 8700CFCHEC 8701CFCHEC
  P8700CFCHEC P8701CFCHEC
• GAZCO STUDIO two Balanced Flue MANUAL [PDF] (2015) For use in Australia covering these models: Natural Gas #8701BFLECAU & Propane Gas #P8701BFLECAU
• GAZCO Stockton five Conventional Flue Coal Consequence Stove [PDF]
• STOVAX Studio Inset Convector Cassette MANUAL [PDF] For use in GB & IE (Cracking Britain & Republic of Ireland). This edition incorporates PM400 Issue four for the purposes of installation in Smoke Command Areas

Could it exist the relay that the cease of the couple sensor is shot it looks pretty beat up in at that place

Michael,

One of the first things to bank check is position of the sensor in the flame.

The second matter I bank check is that the other end of the thermocouple is completely and properly mounted in the gas control. Sometimes just a trivial tightening of its connection makes the departure.

Keep me posted.

Just replaced my thermal couple in my gas heater. I had problems all terminal winter. When I light it and kickoff the heater information technology stay lit for a tour 25 seconds then goes clicks and goes out. Not sure why?

Larry

I looked at Bail'southward website for a PDF installation transmission for any of the Bond Somersville series fire tables - with no success.

However some vendors such equally Lowes do provide the I&O Manual for the Bail Somersville fire table series, such as this instance: BOND SOMERSVILLE FIRE TABLE I&O Manual [PDF]

At that place you'll see a hint of presence of the thermocouple and bracket and igniter but no detailed parts explosion. Peradventure because the visitor is itself ownership the burner associates from a third party vendor.

and this more-detailed parts explosion in a similar manual from Abode Depot, also for a Bond heater product: Bail FIREPIT 221820 Manual [PDF]

This Bond I&O Transmission, in tiny illustrations, shows that the thermocouple and igniter are mounted to the bottom of a pan under the burner itself - this HAS to be model-specific.

Amid the company'south replacement parts are both blank thermocouples and thermocouple assemblies that include the necessary mounting bracket.

An instance is illustrated Higher up on THIS Folio

Yous'll see that the subclass is absolutely necessary to hold the thermocouple, piezoelectric igniter, and the gas pilot in the right position with respect to one another.

I looked at illustrations for Onlyfire gas burners for firepits at several vendors and saw no details well-nigh nor even the presence of igniters and thermosouples. Perhaps nosotros're supposed to just turn on the gas and utilize a friction match, with no thermocouple condom device.

In my Opinion information technology is unconscionable for a third political party vendor to sell a replacement burner without making clear what parts are needed for rubber, proper operation.

You might try contacting the Bond Manufacturing company at

• Bond Manufacturing, 1700 West fourth Street, Antioch, CA 94509 United states of america, Tel: one-866-771-BOND (2663)

Thanks for the reply. The pit, hoses, valves, coupler are Bond Manufacturing model Somersville.

The replacement burner ring and pan are Onlyfire, LLC. 18x18 Foursquare Stainless Steel which came via Amazon without an aparaent site to mountain the sensor. There is no bracket. Tin I mount it so that the sensor is in the flame coming out of the burner somewhere?

valves

Larry,

I would not keep earlier naming the brand and model of the fire pit / burner, and then finding a copy of its installation and operation manual. A do-it-yourself thermocouple mountain bracket, location, and installation risks being unsafe.

Where should I mount the thermal coupler sensor if at that place is no subclass on the replacement pan/burner. This is a propane outdoor fire pit. At that place is no pilot flame or igniter
Thank you

Sounds as if your heater may be producing unsafe or even fatal carbon monoxide, shutting itself off.

Be sure you lot have working CO detectors properly located and tested.

Review the heater transmission to see if it has a CO safety feature.

Also check combustion air adequacy.

Thank you - I pulled the glass today, cleaned the airplane pilot assembly including the thermocouple and checked all connections. I cleaned and reinstalled the glass. The fireplace started and ran for roughly an 60 minutes, then the fire went out. The pilot remains lit, even after the fire extinguishes.

I can turn the pilot off at the switch. If I try to restart the fireplace the electronic ignitor starts the pilot light, but the main flame volition not ignite.

If I wait until the unit cools, the fireplace will light up over again. I guess I could replace the entire pilot assembly, and see if that fixes the problem. It'south strange that the pilot calorie-free stays on, when the main flame goes out. It seems to me that if the thermocouple was bad, the main flame and pilot would extinguush.

I'chiliad not sure what'south incorrect, Karl, perhaps a bad regulator or dirty gas orifices, only a common cause would be a bad thermocouple or flame sensor.

I have a Lennox gas log fireplace with an electronic ignition. The fireplace flame lights and burns for an hour, so the flame goes out.

The pilot calorie-free stays lit. Information technology takes some other hour before the fireplace will calorie-free once more, and it stays lit for another hour. I've past passed the wall switch, so I know the switch and temperature control are non the problem. I'm baffled and need your help. Thank you in advance!!!

Sanding won't fix a failed thermopile, only replacement would piece of work IF one. that was the problem and 2. the new unit of measurement was fully seated and its connector screwed in fully at the control-cease of the device. I suspect there'due south still a problem either with the thermocouple connections or with its placement (non in the flame).

I accept a natural gas fireplace (with local wall switch and remote control receiver circuit). Information technology just quick working suddenly, airplane pilot self extinguished etc. I have ensured that the remote receiver has good batteries. Like a lot of other folks, the pilot will not stay lit.

I removed the thermopile and sanded lightly to make sure corrosion or carbon buildup was not preventing functioning. I adjacent replaced the thermopile with an identical i (at least, looked identical to me).

Well, the pi.ot still goes off equally soon as I release the pilot switch. I removed the airplane pilot valve cover to expose the coil and cannot meet anything apparently wrong. The airplane pilot valve is a Robertshaw brand with 0% turndown (2001 vintage) . Got any ideas/communication? My side by side move is to simply supercede the pilot valve assembly....... then probably call a pro?

Pilot light lights but goes out when the burner attempts to kick on, any ideas?

Dean

If the thermocouple has cleaved off you lot will want to nuance out to a plumbing or edifice supplier and purchase a replacement one to become your heater going. Meanwhile just turn off the gas supply to that heater for prophylactic.

A gas fireplace that is off would non crusade other heating systems to stop.

Take no hot water or heating . Piolet calorie-free on ...but thermocouple that keeps fireplace burning has snapped

Would that grade no hot h2o and heating rads. In airing closet pump wrks and hear it running ALL COPPER PIPES COLD

THANKS
DEAN

When yous replaced the valve did you replace the thermocouple? If not I would do so.

Be certain you also have working and properly located carbon monoxide detectors as a malfunctioning gas heater can be fatal.

I have a wall furnace with a millivolt/airplane pilot flame controlled Robert Shaw gas valve, which has been working just fine equally this heating season began this year. A few days ago it started non consistently responding to changes to the thermostat.

When I would manually raise the temp settings, something I do all the time, the read out on the thermosdtat would say "heat on" just the gas would not plough on. I could very lightly tap the command valve and the buner would ignight and the heater would run until the set room temp was reached.

Once the burner cut off it was hit or miss as to whether it would cut on again...without tapping the valve. I replaced the valve yesterday and the heater ran for several cycles. But this morning, when I over-rode the temp setting (battery operated programable thermostat) the burner failed to plow on.

A lite tap to the valve precipitated ignition and the burner ran until the set temp was reached. As the room temp has dropped, the heater has faild again to ignite. The pilot/thermocouple control was replaced about 5 years ago. Ther previous unit lasted 20 years. I would similar to know what to trouble shoot rather than replacing some other part in a trial and error method.

I am renting a business firm with gas h2o heater. Information technology is an old water heater. The gas on/off switch is spring loaded according to the plumber that came out to see why I was getting no hot water afterward the air temperatures fell into the 40s and 50s here. He said the gas was turned off.

At present I am no dummy, if I had turned the gas off I would have simply turned information technology back on. He said the control valve is spring loaded. He had never seen or heard of it, simply he said the on/off switch could take popped to the off position because of the spring.

Once he turned it on I suddenly had really hot water shortly after. In retrospect I never thought the water was 'hot'. But OK warmth. Temps hither over the summer were in the 90-100 range most days. Could it exist possible the gas was never turned on and I was getting enough warmth with just the pilot light burning? Or is it possible the spring loaded valve did switch to off for some reason? Thanks

GE. gas water tank ignights to heat water simply slower goes out after 3 to 5 seconds.

I have a older house gas furnace Carrier model #58GC080-1A The pilot stay's lit but the burner's don't come on. when you turn the heater on at the thermostat you hear the fan or blower come on but no rut,

At present at the furnace I connected a jumper wire between the ruby-red and white wire to featherbed the thermostat aforementioned thing pilot light is lit blower come's on simply burner'due south never light.

And so information technology's non the thermostat could it be the thermocouple? can they go bad and the pilot stay lit and non let the burner light or is it the gas valve. and I been looking up part's and tin't discover anything for this matter.

thermocouples are pretty standard parts on residential gas heating equipment. I would remove the old one and take it to my Plumbing supplier for a friction match up.

My gas fireplace has a thermopile and a "thermocouple" which is a sensor at the pilot with a very sparse unmarried metal wire running to a round metallic casing which in plow has 2 connectors for the connection to the gas valve. i become no v reading on the wire connectors so I am assuming the sensor needs to be replaced.

(Pilot flame volition not stay on when I release the knob). Problem is I cannot find a replacement role, and the fireplace is about 25 years old.

Can I get a thermocouple that ends with 2 wires and direct connect to the gas valve ? I have replaced the thermopile and the 5 reading for that seems to be expert.

What causes a deposit to build up on the side of a thermocouple in a gas fireplace that somewhen eats through the outer casing?

It's so that virtually thermocouples are opposite-threaded.

What's the brand yous're using? Certainly thermocouples are a rather standard role used on many different gas controls, all of which are likely to employ the aforementioned thread direction.

Come across THERMOCOUPLE INSTALLATION

well...my thermocuple keeps burning out

hasn't happen earlier, every one I put in now burns out after about ane or 2 hot tank of h2o.

You're proverb

Plow the screw clockwise to loosen a right-manus-threaded connector such equally this i < no .anticlockwise to loosen a right handed nut, clockwise on a left handed similar mine has.>

John

Here are some possible explanations for gas flame failure after installing a new thermocouple

1. the end of the thermocouple that attaches to the gas valve is not properly seated or not tightened

ii. the flame sensor is not adequately located in the torso of the flame

3. the replacement thermocouple was defective or was damaged (kinked line) during installation

4. there is a different problem with the gas valve or gas pressure

Replaced Thermocouple simply somehow pilot and or the flame still goes out

On my gas furnace, sometimes the igniter will spark for a longer flow of fourth dimension earlier a flame and sometimes it will somewhen stop with no flame and sometimes it works fine. What could be the culprit?

Michael,

I suspect the installation is incorrect or a control board is bad. The continuous sparking then burns out the igniter. A grounded is shorted of wet igniter wire can likewise cause this problem.

Michael S. said:
I have a woods called-for fireplace with simulated logs which my wife likes to utilize every solar day. Years ago I had a contractor install this ignitor organization so she did not accept to use a match every mean solar day:

It worked fine for years, only so the ignitor/sensor went bad, so I bought this one

Lately I have had to supervene upon this ignitor/sensor every few months, which clearly isn't right since they are supposed to terminal many many years.

What ends up happening every time is that the ignitor/sensor sparks, the pilot immediately lights, and the ignitor/sensor continues to spark and not open the gas line fifty-fifty though the tip is definitely in the airplane pilot flame.

The tip turns red from the heat of the flame, and it keeps sparking as if it cannot sense the flame of the pilot.

Even if I employ a lighter to put an boosted flame on the sensor, information technology yet keeps sparking in the pilot flame.

I have tried cleaning the tip which never seems to prepare it, so I end upwardly but replacing it.

This concluding ane that I replaced did non even work for a week, so obviously I am using the wrong ignitor/sensor, or the wrong size orifice, right? What should I do so that this stays working for years, non days or months?

Clint said:
Thank you for this. My thermocoupler has two electric posts on it, what are these for?
Replacement at local appliance store didn't have those posts, then I did not buy it. Looks like this

Weil-Mclain #119354325 the pilot is lit , h2o in phial, thermostat up just no ignition.

Pilot lit but noignition

Gas valve not opening.

pilot stays on simply oven won't fire up. From what I've read here this doesn't sound like a thermocouple problem. What could it be??

IWatch out: don't know what brand and model fireplace you take - that'd aid.

Merely generally information technology sounds as if you're describing a very dangerous situation, risking fatal aspyxiation or an explosion or fire. I would shut off the gas to the fireplace and leave it off until you lot've had a professional repair or replace its control or regulator or valve - or until another problem such as a gas leak is establish.

In my natural gas fireplace, the pilot stays on fine, but the main flames cycle on and off at random. Are there two thermocouples for that? Othewise, what's your wisdom on that?
Thanks

Why does the thermocouple on our boiler go along failing?

Dear Inspectopians:

We have a 1907 rowhouse with a basement gas boiler fueling hot water radiators on the 2 floors above.

The boiler, a Utica Model 4GB-100, keeps blowing the thermocouple that senses the gas flame (one or two each heating season for the past six or seven years).

At present that we know what to expect, we don't mind replacing the dratted things periodically, but we wonder if this signals something we should be worried about. The long-term future of the heating arrangement is not a large issue, since nosotros likely will not own the house much longer. Our concern involves the living creatures inside it.

We don't mind paying y'all a reasonable fee for guidance/suggestions. Simply nosotros're hoping you don't tell united states of america to call in a local professional.

If the experiences of our neighbors are whatsoever indication, no one in our expanse wants to deal with these old "inefficient" systems, only to sell us a make new one (preferably one that requires moving the boiler to the reverse end of the basement, thus requiring lots of pipes to exist relocated).

Nosotros capeesh whatsoever advice or information you lot can supply. If you need more information, please don't hesitate to write or holler at us. - Thousand.L. 10/23/2013 Oh, and we Love InspectAPedia.

Respond: things to check for repeat failures of a thermocouple or thermopile

A bit of detail might help me help you. Here are some diagnostic questions: Over what time have how many thermocouples failed? Requite me a rough calendar.

Can you tell me the make and role number you've installed?

Tin can you requite me some sharp photos of the heating organisation - both in macro that I can come across the heater'southward full general environs and close-upwardly of the command installation? I specially want to see a photo of the position of the thermocouple sensor in the actual gas flame. Accept you bought all of the replacement parts at the same identify?

Did you see annihilation interesting on the former thermocouples like a kink, abrupt bend, mechanical damage?

And no, in that location is no fee for my consulting as long as it doesn't become likewise consuming for me. Utica gas banality information for your product serial is at http://www.uticaboilers.com/products_gasboilers_mgb.asp

Take a look at the installation instructions at THERMOCOUPLE REPAIR / REPLACEMENT.

Also take a await at page 27 in this Utica MBG gas banality installation manual http://world wide web.ecrinternational.com/secure/upload/document/2783.pdf

at the pilot flame diagnostic drawing where y'all will see that placement of the thermocouple properly in the flame is important: let'due south also be sure that the trouble is the thermocouple and not its position or the pilot flame.

Question: pilot won't stay on after replacing thermocouple

(Jan four, 2022) Anonymous said:
I have replaced the thermocouple in my gas wall heater just the pilot is not staying on. Is whatever adjustments at the valves?

Respond:

Betimes

I've had this trouble too: check for a thermocouple that is non properly installed: e.g.

• if the thermocouple sensor not positioned properly in the flame
• If the thermocouple's indicating finish not fully secured into the gas valve. As well if y'all nicked or damaged the thermocouple tubing it might be dysfunctional.
• A less likely problem is a failed gas control valve.

Question: new thermocouple, tin't keep the pilot lit.

(October 2, 2022) bill jackson said:
I just replaced the thermocouple on nat gas boiler but withal tin can't proceed pilot flame burning. I think the flame is stiff and blue enough only flame goes out when the knob is released. what prevents the airplane pilot from holding?

Reply:

First bank check that the sensor is mounted well within the flame.

Then hold the ignite control to keep the flame going for at least 30 seconds.

If when you lot release the control from the "ignite" position if the flame goes out, then check for an improperly-seated thermocouple at the gas valve terminate.

Question: flame doesn't thouch the thermocouple

(Oct fifteen, 2022) Frank Guttery said:
Pilot flame does not touch on thermocouple all the fourth dimension. When the flame does not touch the thermocouple the heater cuts off. Why does information technology do this?

Reply:

This sounds backwards to me; I suspect a lacking thermocouple.

Question: replaced thermocouple merely can't go on the airplane pilot flame lit

2015/11/09 John said:
Simply replaced pilot/thermocouple assembly on my reliance 606 h2o heater and pilot withal blows out?

Respond:

John

If you're sure the thermocouple is a good one (I sometimes try a 2nd one) then cheque

- that the sensor is properly positioned in the flame

- that the flame is blueish, healthy looking, and covers the sensor

- that the other finish of the thermocouple is properly seated in the screw-in connector on the gas command

- that the thermocouple line is not nicked or kinked

John said:
I checked all of your suggestions to fix this thing. The airplane pilot stays on then I plow the valve to on then information technology starts the heating cycle but when its done heating the pilot still goes out. Is at that place a separate thermopile generator?

Reply:

Not unremarkably on gas water heaters; I suspect the thermocouple is heating up and that is causing movement or change that's fouling things up. When the unit is still hot if you tin can't re-light the burner that may confirm.

John said:
I disconnected the thermocouple and pilot from the vavle and positioned the 2 so they're directly out of the grommet well-nigh three/4 of an inch. Then recoiled the excess at the bottom of the valve and reconnected em. Information technology seems to have worked. Thanx Daniel

Reply:

Cheers for the follow-upward john. I've occasionally had problem with a thermocouple that seemed connected to the command but wasn't perfectly seated. Perhaps straightening out the tubing at the control end and re-connecting was what solved the problem. I'll be sure to emphasize that for other readers.

...

Proceed reading at THERMOCOUPLE REPAIR / REPLACEMENT - topic home, or select a topic from the closely-related articles below, or see the complete ARTICLE Index.

Or see THERMOCOUPLE TROUBLESHOOTING FAQs-two - more-recent questions and answers about thermocouples and thermopiles

Or see these

Recommended Manufactures

• GAS IGNITER DIAGNOSIS & REPAIR
• THERMOCOUPLE REPAIR / REPLACEMENT
• THERMOCOUPLE Rubber
• THERMOCOUPLE LOCATION
• THERMOPILE vs THERMOCOUPLE
• THERMOCOUPLE INSTALLATION
• THERMOCOUPLE DIAGNOSIS
• THERMOCOUPLE TYPES
• ZONE VALVES, HEATING

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Can A Thermocouple Be Repaired,

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