SMEV Hob burner , quick fix? (1 Viewer)

[Jake Royd]

Hello Funsters.
I thought to post a quick request here on Fun before perhaps considering other solutions.
I have a 3 burner SMEV hob in my Chausson 2008 vintage Welcome 85 motorhome.
2 of the burners work fine.
The other burner lights up fine (and with a full flow of gas) but the gas supply shuts off when the knob on the gas valve is released.

As far as I can see the hob does not have flame failure devices fitted so it does not look like a theremocouple issue but I might be wrong here (remember it's a 2008 hob)

I suspect maybe a faulty gas valve.

Does anybody have any quick fixes to try?

Thank you

 

[Macca1954]

Had my hob out the other week 2006 Hymer three burner not sure the make but defo got thermocouples. See them clearly from underneath

 

[Louis]

They certainly do have flame failure device

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[knuckledragger]

Had it happen in Benidorm,gas fitter removed the flash guard undid the pipe tapped it for a few minutes and put it back together again and it’s been ok ever since.Residue builds up in pipe restricting the gas flow it took him longer to undo the bolts than sort out the blockage.

 

[Jake Royd]

Ok chaps , thank you , I'll have a closer look underneath.

 

[jockaneezer]

Had it on mine. Unscrew the hob from the worktop, tip it back and you should see a single wire with a Lucar connector going to each control knob. I just pulled them off and refitted them, it was enough to remake the electrical connection.

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[tonyidle]

The flame failure device and thermocouple are one and the same thing.

 

[Jake Royd]

Magic!
I had a look underneath the unit where there are indeed flame failure devices.
Mine are the twin wire type with a fine copper tube and a braided 'copper' lead.
After a bit of thought about how to remove the ferrule end attached to the valve I found it just pulls off.
Tapped it , in case there might be some dirt in there and refitted it.
Bingo , all OK.

I suspect the act of tapping it did nothing , it was removing and refitting it that did the trick.

Thanks chaps....................

 

[7735]

Our hob is a 2008 Cramer same group as Smev. Same symptoms as yours and was definitely the thermo couplings. Easy job to replace once you get the hob out so that you can gain access underneath. Then you have to get it back in again. I seem to remember that we sourced the replacements from Leisure spares, about £30.00 each. I even looked at replacing the complete hob but was put off when I found out it was £600.

Spongy

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[Jake Royd]

@spongy I was lucky in that I could remove the shelves underneath the hob and get to the gas valves that way , so the job took just minutes.
I was quite impressed that on my oldish Chausson there seems to be a way to remove them all , shapewise , to get at stuff like the water pump below the kitchen unit etc. easily.

 

[7735]

Lucky lucky, it’s not something that you think of when buying a motorhome. Glad you got it sorted.

Spongy