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sstan's avatar
sstan
Explorer
May 13, 2014

Oven Won't Stay Lit

I have a Smev range in my truck camper. It uses piezo spark ignition for the burners and oven. I'm having a problem now with the oven staying lit. It lights fine when holding the knob in but goes out as soon as I release it. I just tried installing a new thermocouple but the problem remains.

Any ideas?

Thanks, Steve
  • And my rant has been refuled! How come this oven has spark ignition for the oven and atwood,wedgewood can't do it for the bigger stoves?
  • sstan wrote:
    YC 1 wrote:
    The flame may be misaligned with the end of the thermocouple. Be sure you position the end properly. Found this simple adjustment on two ovens.


    The tip of the thermocouple is low in the flame almost touching the burner. Does that sound right?
    No it does not, the hotter part of the flame will be towards the top of the flame. I'd suggest to adjust it if possible.
  • Perhaps the gas valve isn't opening, even if the thermocouple gets up to the proper temp.
  • westend wrote:
    sstan wrote:
    YC 1 wrote:
    The flame may be misaligned with the end of the thermocouple. Be sure you position the end properly. Found this simple adjustment on two ovens.


    The tip of the thermocouple is low in the flame almost touching the burner. Does that sound right?
    No it does not, the hotter part of the flame will be towards the top of the flame. I'd suggest to adjust it if possible.


    Ditto: Should be at the tip of the blue flame. On some ovens you can push the bottom tray towards the back and lift up to remove it. The you may find a wing nut holding a shield. Remove that and you can easily see the thing to adjust it.

    An easy clue is to use a simple long lighter and heat the thermocouple with your own flame or just add to the existing one.
  • YC 1 wrote:

    Ditto: Should be at the tip of the blue flame. On some ovens you can push the bottom tray towards the back and lift up to remove it. The you may find a wing nut holding a shield. Remove that and you can easily see the thing to adjust it.

    An easy clue is to use a simple long lighter and heat the thermocouple with your own flame or just add to the existing one.


    The thermocouple on this oven goes in through the bottom which means pulling the stove out of the cabinet. The thermocouple is bolted to the sheetmetal covering of the stove that the burner is also mounted to. The only way to position the thermocouple is to bend the tip of it.

    We're heading out to Arizona today for a few days at the Overland Expo so I won't have any more time to work on this before we leave. When we get back I'll try the lighter idea and see if it will stay lit.

    Thanks to everyone who replied and offered help.

    Steve

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