Gas oven thermocouple

[Boater Sam]

Hi there, having similar issue with same oven. Can you provide a picture of correct installation? My thermocouple and pilot including the deflector slooks the same as your OP photo.
What did you mean by proper location? Was this at the burner end or other end of thermocouple?

Thanks in advance

Pretty sure it was the flame end. The last 10mm of thermonuclear should be in the outer zone of the pilot flame, not the inner light blue cone.

 

[TwoHooter]

Pretty sure it was the flame end. The last 10mm of thermonuclear should be in the outer zone of the pilot flame, not the inner light blue cone.

Gosh, you've got a powerful cooker. Hotter than the sun! Or a usually spillchucker, one or the other.

Mattzilla: Boater Sam is right but just to make it clear it's the end of the thermocouple, often bullet-shaped, which has to be heated so that the system knows there is a pilot flame and unburned gas will not be released into the oven. In the picture the yellow arrow points to the folded metal that supports the tip of the thermocouple. On ours you can't really adjust it to get it in the outer zone of the flame cone, you just have to make sure it gets hot.

 

[Boater Sam]

Gosh, you've got a powerful cooker. Hotter than the sun! Or a usually spillchucker, one or the other.

Mattzilla: Boater Sam is right but just to make it clear it's the end of the thermocouple, often bullet-shaped, which has to be heated so that the system knows there is a pilot flame and unburned gas will not be released into the oven. In the picture the yellow arrow points to the folded metal that supports the tip of the thermocouple. On ours you can't really adjust it to get it in the outer zone of the flame cone, you just have to make sure it gets hot.View attachment 147738

I HATE predictive text! Is that flame shield not on the wrong way round?

 

[TwoHooter]

I HATE predictive text! Is that flame shield not on the wrong way round?

I don't know. Do you think so? That's how it's always been in our ownership and I have no manual for the cooker (which is discontinued) so I can't check.

 

[DownWest]

I don't know. Do you think so? That's how it's always been in our ownership and I have no manual for the cooker (which is discontinued) so I can't check.

It looks a bit odd to me?
Most domestic ovens don't have a pilot light (though that clearly does) they just have the thermocouple positioned to catch the flame from the last orifice on the burner row. The thermostat just regulates between high and low to maintain a sort of constant temp.
It looks like it might have twisted down?

 

[Boater Sam]

It looks a bit odd to me?
Most domestic ovens don't have a pilot light (though that clearly does) they just have the thermocouple positioned to catch the flame from the last orifice on the burner row. The thermostat just regulates between high and low to maintain a sort of constant temp.
It looks like it might have twisted down?

This is how I would expect it to be assembled so that the shield directs the flame onto the thermocouple tip.

 

[Mattzilla]

Thanks for the clarification - so it is the small thin wire and the bullet at the end of the flame not the larger one above.
My "deflector" is also angled down - think is factory design.

 

[wingcommander]

Bit late to the conversation. Think we are confusing a thermocouple ( the thicker one) with a more commonly found expanding vapour flame failure device ( ffd has a very thin wire with a bulb at the end ) .... the pilot flame plays upon the thermocouple, the expansion ffd is located across the main burner. This way only a bypass amount of gas is allowed to main burner until the ffd heats up ( glows red usually) this then allows full gas.


From the picture I can make out what looks like a thin ffd supply wire, but cannot make out a bulb position, also I agree with previous post on a very unusual pilot defector arrangement..

Anyhow I'm off to defrost some boiler condensing pipe now ......FROZEN CONDENSATE HOTLINE how may I help !!!!

 

[TwoHooter]

From the picture I can make out what looks like a thin ffd supply wire, but cannot make out a bulb position, also I agree with previous post on a very unusual pilot defector arrangement..

Thanks - are you referring to my picture? If so the whole arrangement is cock-eyed and nobody else should be attempting to use it as a guide! And I need to rebuild our cooker.

 

[wingcommander]

Thanks - are you referring to my picture? If so the whole arrangement is cock-eyed and nobody else should be attempting to use it as a guide! And I need to rebuild our cooker.

Yes the original photo. In days of old (permanent pilot days ) the vapour expansion bulb would be the only ffd . So if you're flame blew out it would cool and reduce the flame to a bypass rate . Still issued gas though so not that clever..The more popular thermocouple ffd now found on all modern appliances holds open a solenoid until it cools enough to completely shut off all the gas supply.
A common complaint was my oven lights on low but will not increase to main flame...usually a result of customer cleaning oven and accidentally knocking bulb of its mounting hole and away from the flame.

 

[wingcommander]

Yes the original photo. In days of old (permanent pilot days ) the vapour expansion bulb would be the only ffd . So if you're flame blew out it would cool and reduce the flame to a bypass rate . Still issued gas though so not that clever..The more popular thermocouple ffd now found on all modern appliances holds open a solenoid until it cools enough to completely shut off all the gas supply.
A common complaint was my oven lights on low but will not increase to main flame...usually a result of customer cleaning oven and accidentally knocking bulb of its mounting hole and away from the flame.

Two condensates defrosted so far ., Think mother nature is helping today lol