Main PCB Ferroli Econcept Tech 35C Ref. 39821523
RefurbishedFerroliPCBs (control boards)

Main PCB Ferroli Econcept Tech 35C Ref. 39821523

80 €VAT includedIn stock · 2 units

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 out, or the display is unresponsive. Compatible with Econcept Tech 25C, Econcept Tech 35C, Econcept Tech Micro 25C (ref. 39821523). Includes a one-year warranty and delivery within 2–4 working days in the EU.

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

Key Data

Reference
39821523
Brand
Ferroli
Type of part
PCBs (control boards)
Available units
2 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 39821523) equips these models. Verified compatibility; check the reference before purchasing.

Econcept Tech

  • Econcept Tech 25C
  • Econcept Tech 35C
  • Econcept Tech Micro 25C
  • Econcept Tech Micro 35C

Domicompact

  • Domicompact F24

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)
A23Anomaly in the control board parameters (misconfigured/corrupt PCB parameter).The PCB itself loses or corrupts its internal factory parameters, so the PCB is the documented cause; it is verified by re-entering/checking the board parameter and, if it reappears after reconfiguring, the PCB is replaced.
A24Anomaly in the control board parameters (misconfigured/corrupt PCB parameter).Same family as A23: the main PCB does not validate its own internal parameters; the board parameter is checked/reconfigured and, if it persists, the PCB is the part to be replaced.
A26Anomaly in the control board parameters (misconfigured/corrupt PCB parameter).Indicate incorrect internal configuration/parameter of the PCB; the PCB is the component involved. The board parameter is checked, and if it is not resolved by reconfiguring, the PCB is replaced.
A61ABM03 controller fault (internal error of the control unit/main PCB).It is an internal error of the control electronics itself (ABM03 PCB), not of an external sensor; the grounding is checked, and if it reappears, the documented solution is to replace the PCB/controller.
A63ABM03 controller fault (internal error of the control unit/main PCB).Internal error of the electronic controller (same family as A61); the documented cause is the PCB itself. Check grounding and replace the PCB if it persists.
How do I know if this PCB is for my boiler?
Verify the reference 39821523 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Honeywell piece.
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.

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