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Onoff
In the land of the unfinished project I am King!
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Have a read of my trials and tribulations with one:
forum.buildhub.org.uk
Oil Boiler Locking Out
Typical! ?? A couple of weeks after cleaning and power flushing the CH system then adding inhibitor, the boiler today is periodically locking out. As in you wonder why the place is cold and have to go and press the red reset button on the Riello burner. Only just noticed the problem tonight. - Oi...
forum.buildhub.org.uk
julianf
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Next thing to look at is the solenoid. The coils are easily swappable between units. If you have an identical working unit, it's very very quick and easy.
Loose black lump thing on the pump itself.
Although...
Like the electrodes, I'd consider it hugely coincidental for this to fail at exactly the point where you have other issues!
Loose black lump thing on the pump itself.
Although...
Like the electrodes, I'd consider it hugely coincidental for this to fail at exactly the point where you have other issues!
Onoff
In the land of the unfinished project I am King!
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- 11,697
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The coupling, part No.25 can wear. I have 9 spare here:
julianf
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I have in mind that some of these pumps may (I can't remember but a quick Google will tell you) have a small rock catcher filter under one of the oil lines.
However, if you're getting oil from the bleed, this would unlikely be it, even if my memory is accurate.
The solenoid is probably fine, but I guess the valve could be full of junk. Im not certain I've changed the actual valve successfully before. They're either immovable or something else goes wrong.
The pumps on these units are not hard to change over. If you have two identical units it's probably no more than half an hour's work to swap them, do a quick test, and then swap them back.
However, if you're getting oil from the bleed, this would unlikely be it, even if my memory is accurate.
The solenoid is probably fine, but I guess the valve could be full of junk. Im not certain I've changed the actual valve successfully before. They're either immovable or something else goes wrong.
The pumps on these units are not hard to change over. If you have two identical units it's probably no more than half an hour's work to swap them, do a quick test, and then swap them back.
julianf
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I don't know, but I doubt it. It's a tiny reed valve rather than a big electrical contractor.
You can measure the voltage on the lines to the solenoid coil, but I can't remember the detail.
The setup (which wasn't present on older burners) is to get the pump to spin up before letting the oil flow, so there's a sharp start (and more importantly stop) to the oil flow. Older units would just spin down the pump and the oil would do a bit of a dribble at the end.
The valve will only open at about the same time (if not exactly the same time) as the electrodes fire, not before.
julianf
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I've just looked in my eBay history.
I swapped the pump on our own boiler in August of last year. Grant vortex with rdb1 burner.
The current pump is all B10 or whatever whilst the old (original) one wasn't, but is otherwise identical.
I could scrape bits off the seals of the old one with my finger nail, so it wasn't surprising that it failed.
My neighbours (different brand) failed last year also. We tested with one of my boneyard units to conclude it was his pump (can't remember the issue) and then he sourced a replacement off eBay. That was some odd intermittent fault, but was, essentially, the pump.
Basically if it's getting oil, everything else seems to be working, it's going to be the pump or, I guess, the control unit. Control unit is likely going to end up in a whole burner swap so...
I swapped the pump on our own boiler in August of last year. Grant vortex with rdb1 burner.
The current pump is all B10 or whatever whilst the old (original) one wasn't, but is otherwise identical.
I could scrape bits off the seals of the old one with my finger nail, so it wasn't surprising that it failed.
My neighbours (different brand) failed last year also. We tested with one of my boneyard units to conclude it was his pump (can't remember the issue) and then he sourced a replacement off eBay. That was some odd intermittent fault, but was, essentially, the pump.
Basically if it's getting oil, everything else seems to be working, it's going to be the pump or, I guess, the control unit. Control unit is likely going to end up in a whole burner swap so...
julianf
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Ps new pump was £59 delivered. Could probably have found one cheaper but was in a hurry and wanted to be sure it wasn't old stock (ie was the b10 or whatever variant)
Thanks. Do you happen to have a link to the seller in case they have more?
So, good news and bad.
The solenoid wasn't at fault so thats ruled out. BUT.... by swapping them over i have created a leak on the other boiler!! I must have disturbed the tube the solenoid sits over... furthermore, by trying to bodge repair that by gently turning it with a small pair of grips i think i have damaged the brass tube.
The solenoid wasn't at fault so thats ruled out. BUT.... by swapping them over i have created a leak on the other boiler!! I must have disturbed the tube the solenoid sits over... furthermore, by trying to bodge repair that by gently turning it with a small pair of grips i think i have damaged the brass tube.
His videos are very useful.
Installed around 2001 according to the label. Potentially never serviced if I know the previous owners. Having said that, I keep meaning to get round to it and this is our fifth year here.
Onoff
In the land of the unfinished project I am King!
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I would. Mine was in a shocking state. Had to make a new baffle, new lid, replace the top insulation, the gasket between burner and firebox etc.
julianf
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Yeah, thats the actual reed valve bit - the thing that i mentioned id never successfully replaced. But i believe they are replaceable.
Ive just checked the seller, and they are "no longer registered user" (?) but the auction title / part number was -
This may well not be exactly what you want though, but it will give you something to go on.
If the valve is leaking, but otherwise undamaged, it may just be a new o-ring. Ive done absolutely zero research as to if this is the part, but it could well be -
Riello RDB Burner Solenoid Needle Valve 3007582 , 3007871, 3007582, RBS109, 3007871 | Buy at H.P.W.
Riello RDB Burner Solenoid Needle Valve 3007582 , 3007871, 3007582, RBS109, 3007871 available to buy online, with fast tracked delivery. Heating Parts Warehouse the specialists in plumbing and heating parts and spares.
heatingpartswarehouse.co.uk
I will see if i can spot the old pump of mine about here also for additional research. You would be welcome to the valve off that, but, for the sake of £21 delivered (ebay) it would hardly be worth using my "unknown" - but, with luck, its just the oring thats a problem.
Be aware, however, i have a hazy memory of having a failure from this point, and a considerable amount of fuel ending up on the floor (as in it was running through into the next room)
I will get onto this in the summer!
Thanks for the help. I have the parts ready to pick up tomorrow. Paid a little more than I would like if I had more time but not too much.Yeah, thats the actual reed valve bit - the thing that i mentioned id never successfully replaced. But i believe they are replaceable.
Ive just checked the seller, and they are "no longer registered user" (?) but the auction title / part number was -
This may well not be exactly what you want though, but it will give you something to go on.
If the valve is leaking, but otherwise undamaged, it may just be a new o-ring. Ive done absolutely zero research as to if this is the part, but it could well be -
Riello RDB Burner Solenoid Needle Valve 3007582 , 3007871, 3007582, RBS109, 3007871 | Buy at H.P.W.
Riello RDB Burner Solenoid Needle Valve 3007582 , 3007871, 3007582, RBS109, 3007871 available to buy online, with fast tracked delivery. Heating Parts Warehouse the specialists in plumbing and heating parts and spares.
I will see if i can spot the old pump of mine about here also for additional research. You would be welcome to the valve off that, but, for the sake of £21 delivered (ebay) it would hardly be worth using my "unknown" - but, with luck, its just the oring thats a problem.
Be aware, however, i have a hazy memory of having a failure from this point, and a considerable amount of fuel ending up on the floor (as in it was running through into the next room)
One question. What size pressure gauge do I need? I will try to pick one up tomorrow too. I see BES seem to have a couple.
