WB Heatslave 12/14 lockout

[jackg]

Fitted in 2005.
Serviced annually.
Expansion tank replaced two years ago.
Seven day timer.
Converted to a system boiler in 2020.
There has been a lockout 3 to 4 times in the past year and after a reset it has worked fine for 3 months or so.
Now it is in lockout and the burner will not fire.
Say it is in lockout with the hot water on, switching the hot water to off and the lockout light goes out within 5 seconds.
So I switch the hot water on and the lockout light appears in 3 seconds.
The heating does not work. No lockout, and no burner starting.
So what do I need?

 

[Agile]

Sounds as if you may need a good boiler engineeer!

 

[Bigily87]

May need topping up with water. How much bar is it displaying atm

 

[Burnerman]

Are you saying the lockout lamp (on the burner) goes out of it's own accord?
John

 

[CBW]

I take it that it has oil? As per @Agile you need a good engineer really.

 

[jackg]

Are you saying the lockout lamp (on the burner) goes out of it's own accord?
John

For hot water, it does when I switch off the hot water demand, the lockout light goes off inside 3 seconds.
There is just enough oil, not a lot though.

May need topping up with water. How much bar is it displaying atm

1.25 bar, red line is at 1.5 so could do with some more, but not that low.

 

[jackg]

If the heating does not work at all and the hot water tries to but fails, that suggests and electrical fault?

 

[CBW]

If the heating does not work at all and the hot water tries to but fails, that suggests and electrical fault?

Not necessarily

 

[Burnerman]

We are talking about the lockout button, illuminated on the tf830 control box? That needs to be manually pressed to reset it, I've never heard of it doing it itself!
John

 

[oilhead]

If you turn off the hot water demand, then you take power off the burner and the lockout will go out. If you re-instate the demand, then the light will come back on.
What happens if you press the lockout lamp?