Rayburn 400K

[Uncle Nick]

Hi all, I’ve a Rayburn 400K (cooker only) which has a Ecoflam Minor 1 oil burner, that I suspect needs a new pump but I’d like some help please before shelling out on a new one.
The problem is that it keeps going to lockout.
I’ve checked the oil flow to the pump and it’s fine. I’ve bled the pump and there doesn’t seem to be any air in the line.
When switched on after bleeding, the burner fires, runs for about a minute and goes to lockout.
After resetting it purges and then goes straight to lockout without firing.
It seems to me a fuel starvation issue but I don’t understand why it runs ok at first after bleeding.
Any ideas?

Thanks in advance.

 

[SJB060685]

How much oil did you draw off at the pump to check oil flow?

 

[Uncle Nick]

Thanks for the reply.
Not a huge amount, maybe a mug full.

 

[SJB060685]

You need to drain off a few litres. If you drain a few litres without interruption then fuel delivery should be ok. If it's not then you would need to check any filters, valves and pipework for blockages.

 

[Uncle Nick]

I’ll go and do that now. Cheers.

 

[SJB060685]

Report back when you're done please.

 

[Uncle Nick]

Bled a good couple of litres off, didn’t appear to be any air in. Then tried to start, it went through the purge cycle but didn’t spark and then locked out.
I'm bleeding the pump where the pressure gauge would go on, even with the blank completely out there’s very little flow. Is that normal?

 

[SJB060685]

That's not normal no. This could be the pump itself or motor shaft couplings, I believe there's two on that burner but might be wrong.
You need to find someone to come and take a look. If it is the pump like you suspect you don't have the tools to set up the combustion once replaced.

 

[Uncle Nick]

Thanks for confirming that. It’s looking like new pump time.
It’s a problem getting anyone to look at the oil Rayburn, the independent guy who used to service it has retired and Walter Dix (our local Aga/Rayburn supplier) isn’t taking on any new customers at the moment.
Thanks for your help.

 

[ShaunCorbs]

That's not normal no. This could be the pump itself or motor shaft couplings, I believe there's two on that burner but might be wrong.
You need to find someone to come and take a look. If it is the pump like you suspect you don't have the tools to set up the combustion once replaced.

Isn’t it supposed to spark tho ?