Gas fire not lighting after knob is released.

[stratplus]

Intermitent, piezo lights pilot perfectly and flame is over the tip of the thermocouple but often just goes out when button is released.
Coal effect focal point fire.
Other times it fires fine.
There is a lever to a setting of coal or coke depending on what flame picture you prefer, would this make a difference? Noticed when set to coke it lit ok but on coal it wouldn't light to main burner. Or it could have been coincidense.
If thermocouple was on way out durely it would not light at all.
Chimney was sooted up as well, is this normal over 12 months with a dfe fire.
Flue sound and spillage fine.

 

[dancinplumba]

Check tc connection could be valve but change tc first, sounds like it wants good clean/ service imo

 

[dancinplumba]

Oh don't forget WP and gas rate

 

[dancinplumba]

Oh its a dfe is ventilation ok

 

[lame plumber]

sooted up chimney isnt normal for dfe fire, was it swept before the fire was installed?

 

[stratplus]

sooted up chimney isnt normal for dfe fire, was it swept before the fire was installed?

Don't know, house not long been sold and fire was already in.

 

[stratplus]

Check tc connection could be valve but change tc first, sounds like it wants good clean/ service imo

Fire is spotless inclyding burner/controls.
Fire is used everyday though.

 

[stratplus]

Oh don't forget WP and gas rate

These are spot on.

 

[stratplus]

Oh its a dfe is ventilation ok

When I say dfe its got coals but less than 7kw.

 

[Billy Bob Bob]

sure its not a ILFE,they can soot up the chimney if they have high use or the coals are in the wrong orientation,in regards to it not lighting everytime what make is it?

 

[stratplus]

sure its not a ILFE,they can soot up the chimney if they have high use or the coals are in the wrong orientation,in regards to it not lighting everytime what make is it?

That's the one, inset. It has the cables pulled through the box holding it in place. Focal point supa 400.
Coals are to mi's although from a black and white picture to follow its not easy to see.

 

[Billy Bob Bob]

not up on focal points there generally cheap tat sold by the likes of b and q,has it got a microswitch as a off position ? 2 wires off it?

 

[stratplus]

not up on focal points there generally cheap tat sold by the likes of b and q,has it got a microswitch as a off position ? 2 wires off it?

Don't think so.Standard oxypilot/thermocouple. Lever to adjust flame picture coke-coal.

 

[townfanjon]

Stratplus, it's a long shot this one but this sounds similar to one I did a few years ago, the customers were sick of it. It was something as simple as holding the lever down for a good few seconds after it lit . It may help. Check mi's if you have them .

 

[Atouchofgas]

Could be the mag valve that the the tc goes into(back of the gas valve )

 

[Millsy 82]

Is the pilot assembly clean? Check the breather hole to see if there is any muck in it as a bit of lint could be getting sucked in to it then causing the flame to lift from time to time.