Riello RL 70/M - User Manual

Questions and Answers

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Mandy McguireAug 20, 2025
Why won't my Riello Burner start?
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  Robert HudsonAug 20, 2025
  If the Riello Burner doesn't start, several factors could be at play. It might be due to an open limit or safety control device, which you can adjust or replace. Alternatively, the control box might be locked out, requiring a reset. Other potential causes include a tripped oil pressure switch (adjust or eliminate pressure), a tripped motor protection (reset thermal cut-out), or a lack of electrical power (close all switches and check connections). A blown flame safeguard fuse (replace it), a malfunctioning servomotor contact II (adjust cam II or replace servomotor flame safeguard terminals), a jammed pump (replace it), a defective motor command control device (replace it), a defective flame safeguard (replace it), or a defective electrical motor (replace it) could also be the reason.
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brian79Aug 22, 2025
What to do if Riello RL 70/M Burner doesn't start and locks out?
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  Curtis HowellAug 22, 2025
  If your Riello Burner doesn't start and a function lock-out occurs, it could be due to flame simulation, so replace the control box. It could also be due to a photocell short-circuit, so replace the photocell. Another cause could be a missing phase, so reset the thermal cut-out; note that the thermal cut-out trips when the third phase is re-connected.
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Stephanie MedinaAug 25, 2025
Why does Riello RL 70/M Burner start and then lock out?
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  Rachel BerryAug 25, 2025
  If the Riello Burner starts and then goes into lock-out, it might be due to a fault in the flame detection circuit, so replace the flame safeguard.
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lyonsjuanAug 28, 2025
How to fix smoke in flame of Riello RL 70/M?
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  Christopher MyersAug 28, 2025
  If you notice smoke in the flame (dark or yellow Bacharach) of your Riello Burner, it could be due to several reasons. There might not be enough air, so adjust the head and fan damper. The nozzle might be worn or dirty, so replace it. The nozzle filter could be clogged, so clean or replace it. The pump pressure might be erroneous, so adjust it. The flame stability disk might be dirty, loose, or deformed, so clean, tighten, or replace it. The boiler room air vents might be insufficient, so increase them. There might be too much air, so adjust the head and fan damper.
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eshortAug 29, 2025
Why is my Riello RL 70/M pump noisy?
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  brian62Aug 30, 2025
  If the pump is noisy and the pressure is unstable in your Riello Burner, it could be due to air in the suction line, so tighten the connectors. The tank/burner height difference might be too great, so feed the burner with a loop circuit. The piping diameter might be too small, so increase it. The suction filters might be clogged, so clean them. The suction valves might be closed, so open them. Paraffin might be solidified due to low temperature, so add an additive to the light oil.
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David ParkerAug 31, 2025
Why does my Riello Burner lock out after ignition?
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  Jacob WestSep 1, 2025
  If the flame ignites normally but the Riello Burner locks out after the safety time, it could be due to a defective photocell or flame safeguard, so replace them. Alternatively, the photocell might be dirty, so clean it.
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amandacruzSep 2, 2025
How to stop pulsations in Riello RL 70/M Burner flame?
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  Alec PughSep 2, 2025
  If your Riello Burner experiences firing with pulsations, flame detachment (lift off), or delayed firing, it could be caused by a poorly adjusted head, so adjust it. The firing electrodes might be poorly adjusted or dirty, so adjust them. The fan air gate might be poorly adjusted with too much air, so adjust it. The nozzle might be unsuited for the burner or boiler, so consult the Nozzle Table. The nozzle might be defective, so replace it. The pump pressure might be inappropriate, so adjust it.
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ufrankSep 4, 2025
Why is my Riello RL 70/M combustion head dirty?
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  theresazunigaSep 4, 2025
  If the combustion head of your Riello Burner is dirty, it could be due to a dirty nozzle or filter, so replace the nozzle. The nozzle delivery or angle might be unsuitable, so see recommended nozzles. The nozzle might be loose, so tighten it. There might be impurities on the flame stability disk, so clean it. The head adjustment might be wrong, or there might not be enough air, so adjust the head and open the air damper. The blast tube length might be unsuited to the boiler, so contact the boiler manufacturer.
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Wanda WilliamsSep 6, 2025
Why does Riello RL 70/M stop at maximum air damper?
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  Kimberly BartonSep 6, 2025
  If the Riello Burner starts but stops at the maximum air damper setting, it could be because contact I of the servomotor does not operate, so adjust cam I or replace the servomotor flame safeguard terminals.
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Margaret RussellSep 8, 2025
Why does Riello Burner stay in pre-purge?
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  Yolanda CastroSep 8, 2025
  If the Riello Burner remains in the pre-purging phase, it could be because contact III of the servomotor does not operate, so adjust cam III or replace the servomotor flame safeguard terminals.