Worcester Greenstar 18/25 condensing boiler lockout

[Mike Rabbit]

Hi,
Hoping for a bit of help. I have the above oil boiler its about 8 years old. And was working fine, then suddenly the lockout light appears. The boiler was reset, and worked for about 3 hours, central heating and hot water was on.
Since then it's gone about 6 times over the past 4 days, on one occasion working for more than 24hrs.
Any ideas, what could be the problem, before I call out an engineer to assess it please?

 

[dilalio]

Cholesterol: the heating equivalent thereof!

 

[Agile]

Lockouts can occur from many different causes.

But when did you last have it serviced?

Identifying an intermittent fault can sometimes be difficult. But that depends on how well the boiler has been maintained and set up.

Tony

 

[Mike Rabbit]

It was only serviced a few weeks ago and the nozzle changed. I was thinking and hoping that with it running fine for over 24 hours that the most likely cause, could be fuel starvation and possibly the filter partially blocked on the tank?????

 

[Andy4444]

What happened to your Trianco ? Is this the replacement?

 

[Terrywookfit]

Filter should have been checked at service.
My Crystal Ball is not working today.

 

[Agile]

Well of course it could be anything!

But most would call back the engineer who did the servicing as you would not expect repeated lockouts after a service.

Of course immediately after a service the occasional lockout might occur as a result of air in the disturbed supply.

You mentioned a filter at the tank end, didn't you point that out to the engineer so that he could clean it?

Tony

 

[oilboffin]

Get the engineer back and tell him to get it fixed did he change the nozzle and set the oil pressure
with a gauge I think you need a 0.65x60degree ES nozzle Nd 120psi.Bob