Immergas Eolo Star 23 kW PCB Bertelli Partners 1 Ref. 023947
RefurbishedImmergasPCBs (control boards)

Immergas Eolo Star 23 kW PCB Bertelli Partners 1 Ref. 023947

100 €VAT includedIn stock · 1 unit

PCB (control board): refurbished spare part that controls the ignition, modulation, and safety features of the boiler. Useful if the boiler does not ignite, locks, or the display does not respond. Compatible with Eolo Star 23 KW, Eolo Star 24 KW, Eolo Star 24 3 E (ref. 023947). Includes a one-year warranty and delivery within 2–4 working days in the EU.

1
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Delivery in 2–4 working days
1-year warranty
14-day return
Technical support

Key Data

Reference
023947
Brand
Immergas
Type of part
PCBs (control boards)
Available units
1 unit in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 023947) equips these models. Verified compatibility; check the reference before purchasing.

Eolo Star

  • Eolo Star 23 kW
  • Eolo Star 24 kW
  • Eolo Star 24 3 E

Nike Star

  • Nike Star 23 kW

Fault codes related to this part (not the entire boiler). They usually have more possible causes: first rule out electrodes, wiring/connections, and gas supply. Verified with ≥3 sources.

CodeWhat does it mean?Cause and diagnosis (this part)
01Lockout due to ignition fault.If the PCB does not excite the ignition transformer or deliver 230 V~ to X7 (11–12) during the safety window (8–10 s), the ignition does not start; check the transformer discharge and voltage at X7, and if they are missing, the PCB is faulty.
04Electromechanical contacts (lockout).When the safety thermostat and pressure switches are correct and the wiring/continuity is OK, the PCB does not close/read the circuit and orders the lockout; after checking cleanliness, continuity, and wiring, if it persists, replace the PCB.
20Lockout due to parasitic flame.If the electrode/ionisation cable are intact and well positioned but the boiler detects a false flame or loses the signal, the cause is the flame control electronics on the PCB; check the electrode and wiring and, if they are fine, replace the PCB.
31Loss of communication with the remote control (MRD/Remote Command).Correct connection at terminals 40–41 and remote control replaced, if communication loss continues, the input/bus on the PCB is faulty; check polarity/dedicated cable and, if it persists, replace the PCB.
80Gas valve modulator circuit/driver fault (possible PCB fault).If the wiring is correct and the modulating coil measures its nominal resistance (~20–30 Ω depending on the valve) and receives control voltage, the fault is in the valve driver integrated in the PCB; replace the control board.
How do I know if this PCB is for my boiler?
Verify the reference 023947 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Bertelli & Partners piece (DIMS09 IM01).
What is it used for?
The PCB controls the ignition, modulation, sensor readings, and safety features of the boiler.
Is the boiler not igniting, locking out, or is the control board unresponsive?
After ruling out mains voltage, fuse, and connectors, a damaged PCB causes lockouts, blackouts, or erratic display. Repair the external cause before installing the new one.
Which models is it suitable for?
Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations
After installation, a technician must adjust the service parameters (type of gas, power settings) and check combustion and safety features.
What does refurbished mean and what coverage does it have?
Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

Spare Parts Related Boiler Eolo Star 23 KW Bertelli Partners 1

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