Worcester Greenstar Heatslave 12/18 lock out still on

sumzorovao · 27 Jan 2010

Hi Guys,
I have a Worcester Greenstar heatslave 12/18 oil boiler, I year old. Lock out came on and I figured we must have run out of oil. The oil has now been delivered but the boiler won't restart. I have pushed restart button 4 times ( leaving min. of 5 mins between each try) and no luck. I had a similar problem about 6 months ago and engineer said that water pressure had dropped too low-I have checked this and it is now at 2 bars.
I would appreciate any ideas/help as its quite cold and I am very frustrated!!
Many Thanks

sumzorovao · 27 Jan 2010

Just to add, I have also turned the alen(?) key bleed screw at the front face of the boiler-still nothing!

slapper · 27 Jan 2010

Did you run out of oil or not,if you did then more than likely the oil line needs purging of air at the oil pump on the burner. What area of Lincs are you in?

sumzorovao · 27 Jan 2010

Hi Slapper,
Thanks for your reply.
Hi, Yes I did run out of oil (or at least I assume I did as would have been getting low). I live between Lincoln and Sleaford. How do I purge lines?

sumzorovao · 27 Jan 2010

I have bled the oil ( a small amount dripped through) on the pump? ( has a flexi hose into it), but still nothing! Am I missing something obvious?

Burnerman · 27 Jan 2010

If your tank is higher than the boiler, then releasing the flexible pipe to the oil pump and letting air free fuel through the line is usually sufficient....if need be you can just crack open the port marked 'P' on the pump to fully bleed once it is running.
Make sure all tank valves are fully open!!
What did you adjust on the front face of the boiler?

John

sumzorovao · 27 Jan 2010

Hi John,
Thanks for your reply.
This is the new boiler ( did have the old one which was so easy to do!) and on the right towards the top is a small box with a flexihose attached and a small valve above the hose which opens with an allen key-a very very small amount of oil did show after I tried the restart again with the valve slightly open.
The tank is at about the same level as the boiler.

Burnerman · 27 Jan 2010

Hi - lets get this clear?
The oil pump sits to the right of the burner, therefore I presume its a Bentone burner.
Was this allen screw you touched tightly in place or did it seem as if you were adjusting something? I've just got a fear that you may have adjusted the pump pressure if you did.
Either way, if there is fuel at the flexy hose going into the pump, then the line should be bled through.
John

sumzorovao · 27 Jan 2010

Hi John,
Just checked manual online, it is the Bentone Sterling burner.
The screw I adjusted just screws open and shut,i.e it was shut tight-I have tightened it up again as well.
Vikki

Burnerman · 27 Jan 2010

Ok Vikki thats cool....so, have you released the flexy fuel line that goes into the oil pump? Did oil flow?
If so, reconnecting the flexy pipe to the pump, and pressing the lock out button should get the burner whirring again, and hopefully burning!
Whats happening?
John

sumzorovao · 27 Jan 2010

Hi John,
I've been beaten by my 'girliness'!!!

I can't get the flexihose off!!! That said it doesn't actually look as though you screw it off with the nut that sits under the bleed screw

If it does and brute force is the measure of the day I shall have to wait until my husband returns home from work. Grrrrr.
Vikki

Burnerman · 27 Jan 2010

Ok, some of these flexible lines are screwed firmly into the bottom of the oil pump, and its easier to disconnect at the other end. Either way, its a tall order for the pump to bleed an empty oil line without help. In fact on some really awkward applications we use a hand pump to suck the oil through.
I hope you get it sorted soon!
John

sumzorovao · 27 Jan 2010

Thanks John,
You have been a great help,

I'm sure I know how to sort it now, just need a bit of brawn!
Vikki

oilhead · 28 Jan 2010

Have you got a filter in line that also needs bleeding? If there are screws on top of it, then the answer is yes.

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Worcester Greenstar Heatslave 12/18 lock out still on

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