Radiant RBS 24 - User Manual

Questions and Answers

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mendozatimothyAug 18, 2025
How to fix Radiant Boiler ionisation problem?
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  holly44Aug 18, 2025
  The possible causes for ionisation problems include no gas supply (check the mains supply), a broken or earthed ignition electrode (replace part), a gas valve malfunction (replace part), mechanical minimum adjustment set too low or ignition sequence set too low (regulate mechanical minimum or slow ignition), gas valve inlet pressure too high for LPG boilers (check the maximum pressure setting), ionisation electrode malfunction (replace part), or a disconnected ionisation electrode cable (connect the cable).
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William Johnson Jr.Aug 20, 2025
What to do if my Radiant RBS 24 Boiler has no water in the system?
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  Gina CarrollAug 20, 2025
  If there's no water in your Radiant Boiler system, it might be due to insufficient water pressure (stops at 0.5 bar), in this case you should fill the system. Alternatively, the water pressure switch cable may be disconnected (check the wiring), or the water pressure switch may have malfunctioned (replace part).
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Timothy GonzalesAug 22, 2025
Why is my Radiant Boiler safety thermostat tripped?
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  Jason YatesAug 23, 2025
  A tripped safety thermostat in your Radiant Boiler could be due to a thermostat malfunction or being out of calibration, requiring a replacement part. It could also be caused by a disconnected thermostat cable, so check the wiring.
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rachel19Aug 26, 2025
What causes inadequate circulation in a Radiant RBS 24?
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  christopher72Aug 26, 2025
  Inadequate circulation in your Radiant Boiler can stem from an obstructed primary or secondary heat exchanger (clean or replace part) or a pump malfunction, including a dirty pump impeller (clean or replace part).
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Ethan Benitez DDSAug 27, 2025
What to do if my Radiant RBS 24 air pressure switch isn't working?
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  lisa21Aug 27, 2025
  If the air pressure switch in your Radiant Boiler isn't working, it could be due to the switch being out of order (replace part), obstructed inlet or outlet flue gas ducts (check flue gas ducts), or an unstable switch cable (check cable).
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owalkerAug 30, 2025
How to resolve flame detection malfunction in Radiant RBS 24?
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  Shelly HillAug 30, 2025
  A flame detection malfunction in a Radiant Boiler may occur due to an ionisation electrode malfunction (replace or clean part), an ionisation electrode cable malfunction (replace part) or a printed circuit board malfunction (replace part).
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Noah HallSep 2, 2025
What to do if my Radiant RBS 24 heating sensor malfunctions?
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  Gary JohnsonSep 2, 2025
  If your Radiant Boiler's heating sensor malfunctions, it could be due to the sensor being out of calibration (resistance value 10 kOhms at 25 °C), requiring a replacement part. Another reason might be a disconnected or wet sensor cable (check the power supply connection).
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Eric HarrisSep 4, 2025
What does it mean when my Radiant RBS 24 Boiler requests parameter programming?
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  Adam HallSep 4, 2025
  A parameter programming request on your Radiant Boiler indicates a loss of microprocessor memory, which requires you to reprogram parameters.
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Rachel WallaceSep 7, 2025
Why is my Radiant RBS 24 Boiler showing a D.H.W. sensor error?
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  jenniferyoderSep 7, 2025
  A D.H.W. sensor error on your Radiant Boiler could indicate that the sensor is malfunctioning or incorrect (resistance value 10 kOhms at 25 °C), requiring a replacement. Alternatively, the sensor cable may be disconnected or wet (check the power supply connection).
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Thomas McgeeSep 9, 2025
What to do if my Radiant RBS 24 Boiler modulator is not working?
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  elarsonSep 9, 2025
  If the gas valve modulator in your Radiant Boiler is out of order, the solution is to replace part.