Ferroli BlueHelix THETA 24 C User Manual (English)

Questions and Answers:

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lori08Aug 21, 2025
How to fix no burner ignition on my Ferroli Boiler?
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  Nichole BuckAug 21, 2025
  If your Ferroli Boiler has no burner ignition, several factors could be at play. It might be due to a lack of gas flow, in which case you should check the gas supply and ensure any air is purged from the pipes. Alternatively, the ignition/detection electrode might be faulty; inspect its wiring, positioning, and cleanliness, replacing it if necessary. Other potential causes include insufficient gas supply pressure (check the pressure), a blocked trap (inspect and clean it), obstructed air/fume ducts (clear any obstructions), incorrect calibration (perform a complete manual calibration), or a faulty gas valve (inspect and replace if needed).
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Kristina WintersAug 23, 2025
What to do if my Ferroli Boiler has overtemperature protection intervention?
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  davisbrianAug 23, 2025
  If your Ferroli Boiler experiences overtemperature protection intervention, it could be due to several reasons. The sensor might not be correctly positioned on the flow pipe or could be damaged, so check its positioning and operation, replacing it if necessary. Another cause could be a lack of water circulation in the system, so check the circulating pump. Air in the system can also trigger this issue, so vent the system to remove any trapped air.
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Margaret ReevesAug 25, 2025
Why is my Ferroli BlueHelix THETA 24 C Boiler showing a specific flame combustion error?
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  gregorywhiteAug 25, 2025
  If your Ferroli Boiler is experiencing a specific flame combustion error, it could be due to an unstable flame or signal after ignition. Check the gas supply, fume ducts, and condensate drain. Also, verify the correct position and condition of the electrode. The error should reset after approximately 3 minutes.
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littleamyAug 26, 2025
What to do if there is no flame after the ignition phase in my Ferroli BlueHelix THETA 24 C?
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  cbradleyAug 26, 2025
  If the Ferroli Boiler has no flame after the ignition phase, the possible causes are: an ionization electrode fault (check the position of the ionization electrode, free it from any deposits and do a complete manual calibration, if necessary replace the electrode); unstable flame (check the burner); air/fume ducts obstructed (remove the obstruction from the flue, fume extraction ducts, air inlet and terminals); trap blocked (check the trap and clean it if necessary); wrong calibration (do complete manual calibration).
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Natalie CollinsAug 28, 2025
Why is the exchanger protection intervening on my Ferroli Boiler?
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  curtisomarAug 28, 2025
  If your Ferroli Boiler's exchanger protection is intervening, it may be due to no water circulation in the system. Check the circulating pump and heating system. Another cause could be poor circulation and an anomalous flow probe temperature increase, in which case you should vent the system. A blocked exchanger could also be the culprit; check the exchanger and system.
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Lisa GallagherAug 29, 2025
How to troubleshoot a flow sensor fault on a Ferroli Boiler?
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  Benjamin AndersonAug 29, 2025
  If your Ferroli Boiler displays a flow sensor fault, the sensor may be damaged. In this case, check the wiring or replace the sensor. Other possibilities include shorted or disconnected wiring.
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Mr. David PetersonAug 31, 2025
What causes a return sensor fault in a Ferroli BlueHelix THETA 24 C Boiler?
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  Cory ClarkAug 31, 2025
  If your Ferroli Boiler displays a return sensor fault, it could be due to a damaged sensor. Check the wiring or replace the sensor. The wiring could also be shorted or disconnected.
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sweeneyjustinSep 2, 2025
What does it mean when my Ferroli Boiler shows a DHW sensor fault?
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  Annette MillerSep 2, 2025
  If your Ferroli Boiler displays a DHW sensor fault, the sensor might be damaged. In this case, check the wiring or replace the sensor. Other potential issues include shorted or disconnected wiring.
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perryheatherSep 3, 2025
How do I fix a fume probe fault on my Ferroli BlueHelix THETA 24 C Boiler?
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  roberto78Sep 3, 2025
  If your Ferroli Boiler is showing a fume probe fault, it could be because the probe is damaged. Check the wiring or replace the fume probe. The wiring could also be shorted or disconnected.
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Jeffrey EvansSep 5, 2025
Why is my Ferroli BlueHelix THETA 24 C showing an external probe fault?
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  renee69Sep 5, 2025
  If your Ferroli Boiler displays an external probe fault, it could be due to a damaged probe or shorted wiring. Check the wiring or replace the sensor. Alternatively, if the probe was disconnected after activating the sliding temperature, reconnect the external probe or disable the sliding temperature.

Ferroli BlueHelix THETA 24 C Specifications

General

Category	Boiler
Model	BlueHelix THETA 24 C
Type	Condensing
Power Output	24 kW
DHW Output	24 kW
Efficiency Class Heating	A
Efficiency Class DHW	A
Maximum working pressure	3 bar
Sound power level	49 dB
Fuel Type	Natural Gas
Weight	29 kg
Connection diameter (gas)	¾ inch
Connection diameter (water)	¾ inch
Electrical supply	230 V