Gas Stove Top Hob Burner Not staying lit, Thermocouple How it works & Test if lights but goes out

Greetings, and welcome to our guide on hob and oven repair. If you are experiencing issues with your appliance where the flame goes out upon releasing the knob, do not fret. The flame should remain lit after holding the knob down for a few seconds - let us explain why this may not be happening and demonstrate how to test it.
We have dissected a gas valve to better illustrate the inner workings. The thermocouple, invented in the 1800s by Thomas C. Beck, generates a small amount of direct current (DC) electricity. This electrical current flows to an electronic valve within the gas valve. When you press the knob down, you bypass this electronic valve, allowing time for the thermocouple to reach its operating temperature. Upon release, the valve should remain open due to the constant DC current keeping it active.
To test for potential faults, we have set up a demonstration using a dissected valve and a thermocouple. When the plunger or valve is pressed down without heat applied to the thermocouple, it does not lock in place. However, once heat is introduced and the plunger is pressed down, it locks into position. Removing the heat source causes the valve to unlock after a predetermined period, ensuring your gas appliance remains safe.
Testing a thermocouple's energy output is straightforward - simply set your meter to measure millivolts of DC electricity. For twin-wire versions, connect to the outer rim (positive) and inner rim (negative) before positioning the thermocouple into a flame. Thanks to the Seebeck effect, discovered in 1800, introducing a flame will cause the thermocouple to produce energy.
Learn how to disassemble and repair your appliance with ease and confidence. 🧰
Discover the subtle signs that indicate deeper issues within your gas stove. 🕵️‍♂️
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[@saeedhappy4806]

One of the best clips that give clear idea about thermocouples operation in ovens.

[@How-to-repair]

Glad you think so mate. Since we work very hard in our warehouse making free video guides for you all on appliances, we always appreciate a beer, offering a choice of single or round beer. www.how-to-repair.com/help/buy-paul-a-beer/

[@almanizitrone9399]

great video! now we know what's wrong in our kitchen.

[@How-to-repair]

Glad it was helpful mate! All I'm trying to do is teach in the correct way that everyone understands. It would be really helpful for me to get my video shared and help us fight appliance waste! Please remember to subscribe to our channel, as that really helps us 😇

[@almanizitrone9399]

@@How-to-repair 100%! Shared and subbed all over! Keep it up and all the best!

[@panamapat]

Thanks a million for the well done video. Your explanation of a single wire thermocouple using the stove chassis as a return for the thermocouple electric signal was a perfect explanation in that it requires the thermocouple to be tightly and cleanly bolted down to the burner. The nut was loose and so tightening it resolved the return signal to the gas valve. Works perfectly now! Many thx

[@How-to-repair]

Glad it helped you What would really help me to get my video seen as I'm no IT expert is to either share the channel or at least post it to your friends my videos might not be KZbin superstars, but they save Appliances from the scrapheap. Share and help us fight appliance waste! @panamapat please remember to subscribe to our channel as that really helps us kzbin.infoe432SAb2g08 Thanks, Paul 👍

[@PeterJ-ij6mm]

There is also a non electrical capillary type with a small tube that uses liquid expansion to operate the valve.

[@noldushumlesnurr6169]

Great info. Thanks!

[@wozzer296]

Another great vid, thanks

[@How-to-repair]

Glad you enjoyed it

[@SailingStardate]

thanks for the video! good job

[@How-to-repair]

Hi thanks a lot for your comment and I'm glad it helped. It would be really helpful for me to get my video shared and help us fight appliance waste! Please remember to subscribe to our channel, as that really helps us 😇 Since we work very hard in our warehouse making free video guides for you all on appliances, we always appreciate a beer, offering a choice of single or round beer. www.how-to-repair.com/help/buy-paul-a-beer/ Thanks, Paul 👍

[@Lordjohn007]

Absolute brilliant video, not sure but your videos keep coming up in my YT feed. Anyhow, had an issue with one of our burners not staying lit, after watching your video I went to the said burner and first thing I noticed was the thermocouple was slightly higher than the flame itself, so I knocked it down with a couple of taps and what do you know - the flame now stays lit! save ourselves I'd say maybe £150 with a callout and paying for a part we didn't need! Thank you :D

[@How-to-repair]

Hi thanks a lot for your comment and I'm glad it helped. It would be really helpful for me to get my video shared and help us fight appliance waste! Please remember to subscribe to our channel, as that really helps us 😇 Since we work very hard in our warehouse making free video guides for you all on appliances, we always appreciate a beer, offering a choice of single or round beer. www.how-to-repair.com/help/buy-paul-a-beer/ Thanks, Paul 👍

[@MydahWasti]

This was so helpful !! U saved me 100s of pounds

[@How-to-repair]

I'm glad this video helped you fix your hob My videos might not be KZbin superstars, but they save Appliances from the scrapheap. Share and help us fight appliance waste! @MydahWasti please remember to subscribe to our channel as that really helps us kzbin.infoe432SAb2g08 Thanks, Paul 👍

[@amingca2610]

Hillo sir .i have gas steve 8 valve .from before we use it but from two year we not use now we need to use when i connct the gas line .the stove all valve leek the gas. is u can helf me ?

[@Disorder1889]

Quality info

[@selamozkul]

Nice explanation. Thanks🎉

[@How-to-repair]

Glad to hear that mate, cheers!

[@Pete.Ty1]

👍👍👍.Thank you

[@How-to-repair]

@1orbicularis please remember to subscribe to our channel as that really helps us kzbin.infoe432SAb2g08 Thanks, Paul 👍

[@AliTwaij]

nice thankyou

[@How-to-repair]

Thanks mate!

[@juniedshaikh9493]

Thanks

[@How-to-repair]

Hi mate, thanks a lot for your donation!

[@ddff-vm2jh]

سلام ممنون از ویدیوی کاربردی تون. من یک اجاق گاز 5 شعله بدون ترموکوپل دارم.چطور می تونم هر پنج شعله رو ترموکوپل دار کنم؟ آیا این کار ایمن و مقرون به صرفه است؟

[@Whatsupbuddiebud]

I am in Ecuador and have a gas stove. The large burner has always been an issue. The flame will light but after a short time will go out and I cannot get the flame again. I have to wait. Then its the same thing over and over. Also I have another burner that clicked constantly for several hours then stopped. Any suggestions?

[@fernandomatias5514]

❤❤❤❤

[@philipdoyle1851]

My brand new Rangemaster won’t stay Luton one burner. Only installed it last week. Can’t get the provider out as I fitted it myself 😢 any tips??

[@How-to-repair]

Make sure the FSD is in the flame the same as the others if this does not work check pipe From the FSD going to the gas app, you may have a loose connection if none of these then you may have a duff valve on the burner

[@philipdoyle1851]

@@How-to-repair thanks for your reply. It’s been quite helpful. I’m happy to say my 5 burners are lighting fully and perfectly. Thank you so much 😊🙏it’s not everyday you get some good info that actually helps 🙂

[@kasunmalwatta2697]

👍

[@How-to-repair]

Thanks for the comment mate!