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Riello oil burner RDB with red plastic cover at the front wont ignite. I've tried bleeding the valve. The motor seems to make an electrical humming noise for about 12 secs, then the system attempts to ignite with a click noise which lasts for about 4 secs before switching off again

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  • abdon800 Nov 23, 2008

    I have exactly the same problem. Have cleaned the filter and tank and refilledsystem. Still cant get it to fire up.

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The motor should spin when the boiler is switched on. One end of the motor spins the fan the other end works the pump. The control box then starts the transformer that starts a spark. The control box then opens up the oil. The boiler should then light if any of the above or the boiler does not light, the boiler will go to lockout.
From what you say the motor is not spinning, thus it could be the motor or more like the pump.

YOU SHOULD NOT PLAY WITHE THE PUMP

If the wrong setting is made it could 1 burn out the back of your boiler 2 go to soot and the boilers in an hour would be filled up and become a fire risk. 3 not start at all if the setting is too low it is a fine line to get it to work and needs the right tools.

regards
oil eng.

Posted on Oct 01, 2009

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If the moror just humes then locks out, more that likely the capacitor (small white cylinder like object below control box), get yourself a 5uf capacitor, 2 wires, jobe done!!

Posted on Nov 19, 2009

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1 Answer

Riello oil burner runs for 2 seconds and then stops ??


1. Take off the red cover which is held on by a screw.

2. Use an allan key to loosen the screw facing you.

3. Turn on boiler. The boiler will draw the oil through and bubbles of air will escape through the screw you have loosened.

4. When it is just oil coming through the cracks around the screw, re-tighten the screw and turn on again.

Feb 15, 2012 | Air Conditioners

1 Answer

My oil burner trips the m.c.b, what is the cause?


Commonly Reported HVAC Problems: [Copyright © 1996-2011. Hannabery HVAC. All rights reserved.]That would be the little red button on the box at the oil burner itself. If your oil burner stops running the first thing you should check is the reset button. If you press it and the burner fires up then that was the problem. If the button should trip again then there is a definite problem and you should schedule a service call immediately. Do not keep resetting the button and ignoring the problem. afg-redbut.jpg Now, what is this button and why does it trip? It is a safety device. It shuts the burner down when it thinks there is a problem. It is on the primary control and is hooked-up to a cad cell. A light sensor. (The same thing that turns outside lights on at dusk.)
On a call for heat, with the burner running, the cad cell senses the light of the flame. If it stops sensing the light of the flame, it causes the red button to trip, shutting down the burner before any significant damage is done. Next question. Why would the sensor stop sensing light while the burner is running? Many reasons. Almost all of which require a service call. Below is a list of possible causes and things to check. Items in blue usually require a service call. Items in red however can be addressed, even fixed by the homeowner.
  • Faulty or dirty cad cell
  • Faulty primary control
  • Bad or weak ignition transformer
  • Bad burner motor
  • Bad fuel pump
  • Blocked oil filter, strainer or nozzle
  • Delayed oil valve not opening (some units)
  • Cracked electrodes
  • Improperly set electrodes
  • Air in fuel line
  • Burner running with a very high smoke
  • Burner sooted-up
  • Loose electrical connections
  • Damaged flexible coupling
  • Water in oil tank

  • Out of oil - Have your tank filled
  • Chimney blocked - Have it cleaned
  • Closed oil valve - Open valve
  • Air, Pump not primed - Prime pump - may need to call for service
oilfilters2a.jpg
Oil filter refills oilfilter1a.jpg
Oil filter canister eksmart.gif
Smart Filters
The bottom causes in red are common problems and can be addressed by the homeowner. Try to check for these conditions first before calling for service. Hope this helps, remember - these are just rough guidelines and not all possible situations are covered.

I found this article on the Web So I can't take credit for it..... But it is a very good place to start for your problem It is what I would start checking if you called me for service .......Good Luck

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1 Answer

Pilot light out....buderus furnace but a red riello ingniter on the front....I've watched my fuel guy flash a light into it this baby when out before but need to do it myself now.....could you walk me thru...


This is due to a "Lock-Out" Check your flame sensor for carbon build up. Possible heat exchanger blockage.
The reason he used a flashlight was to trick the burner into seeing a flame, not a good idea for a novice.

Mar 16, 2011 | Air Conditioners

1 Answer

We ran out of oil yesterday and have now filled tank this morning. Left hand red light is on bottom plinth but when pressed goes off for a few seconds and you can here system start up but then goes out. ...


An oil burner has a high pressure pump on the burner-- can you locate the pump?
(There will be a copper oil line coming into one part of the pump...)
Do you see a little 'Bleeder valve'-- usually right on top-- It takes about a 1/4" (or 5/16" open-end wrench to access it. Air has to be bled from this fitting, until oil comes out.

In order for air to bleed OUT-- the pump has to be running

You can reduce the mess, by slipping a small hose on the bleeder valve, and letting the air, then foam, and then all oil, run into a little can. (Much like bleeding the brakes on your car..)
You may have to cycle the burner a few times, as it times out, from running, but not having JUST OIL, to pump. (These pumps do very poorly, pumping air and oil mixture!-- It must be ALL OIL!)

When you have all oil, tighten the bleeder valve-- Now you will get oil pressure, and you should get ignition. Doyou hear the spark of the ignition?

Tell us more-- and we'll go to the next step

Mack B

Jan 18, 2011 | Air Conditioners

1 Answer

The oil tank ran dry..now the boiler wont light now the oil tank is full


Hi,

Here is a tip I wrote about how you can bleed the air out of the lines to get the oil burner working again...

How to Bleed Oil Burner - Beckett Oil Burner Repair


heatman101

Jan 05, 2011 | Air Conditioners

1 Answer

Ran out of oil, now refilled, but boiler won't ignite. Tried all as owners manual instructs, but still keeps locking out - help please


After running out of fuel,you need to bleed the oil pump on your burner.There should be a 3/8 bleed port on the bottom of your burner pump. The bleeder valve looks like a nipple. A 3/8 opened end will fit over it.Put a can or cup under it,open it a bit and reset your control.when pure oil comes out close it and burner will fire.If your not good with it you should get a tech or handy man to do it.

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3 Answers

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1 Answer

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1 Answer

Riello burner will not pump oil to nozzel to burn.


Revisit the photocell:
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2. Try to borrow a working photocell or use yours in another burner to make a determination.

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2 Answers

I have a riello burner for my central heating system. When i turn the heating on the burner ignites for a few swconds and then goes out.... the burner tries to re-ignite and the same happens. I have...


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