Bertelli & Partners Ferroli Fersystem Tech 25C PCB Ref. 39828240
RefurbishedFerroliPCBs (control boards)Bertelli & Partners

Bertelli & Partners Ferroli Fersystem Tech 25C PCB Ref. 39828240

Stock · 1 unit

The control PCB from Bertelli & Partners for the Ferroli Fersystem Tech 25C boiler manages the ignition, burner modulation, pump, and system safety features. When it fails, the boiler may not start, lock out, or exhibit erratic behavior, potentially displaying the fault code A02: Flame signal present with burner off. This model is compatible with several boilers in the Fersystem Tech range, such as the Fersystem Tech 10A and the Fersystem Tech 35C, among others. It is recommended to replace it if you experience starting issues or unstable operation.

VAT included

Compatibility

Ferroli boilers compatible with reference 39828240

PCB with reference 39828240. Ten verified compatibilities: Fersystem Tech 10A and Fersystem Tech 18A.

Proven compatibility

Boiler modelFamilyVerification
Ferroli Fersystem Tech 10AFersystem TechContrasted
Ferroli Fersystem Tech 18AFersystem TechContrasted
Ferroli Fersystem Tech 25AFersystem TechContrasted
Ferroli Fersystem Tech 25CFersystem TechContrasted
Ferroli Fersystem Tech 35AFersystem TechContrasted
Ferroli Fersystem Tech 35CFersystem TechContrasted
Ferroli Fersystem Box 25CFersystem BoxContrasted
Ferroli Fertech 18 OVFertechContrasted
Ferroli Fertech 31CFertechContrasted
Ferroli Fertech 38CFertechContrasted

Can't see your model or have questions? The printed reference takes precedence. How to check it ·

Guide

How to check if ref. 39828240 is the part for your boiler

What determines it is not the boiler model, but the reference printed on the part you already have installed.

  1. Find the reference printed on the installed part and check whether it matches the catalogue reference 39828240. If it is not visible, do not identify the part from its shape alone.
  2. Check the full boiler model on its data plate and look for it in the model associations on this page.
  3. Compare the connections and physical body with the original part before installation.
  4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.
Diagnosis and fault codes

Symptoms and faults that the PCB 39828240 resolves.

The PCB controls the ignition, modulation, and safety features of the boiler. These are the typical symptoms and what to do:

Common symptoms and faults

  • 01

    The boiler is not responding at all, neither the indicators nor the display, as if it had no power.

    Cause: The PCB controls the entire system; if it fails, the unit will not start even if it receives power.

    Before changing it, check the fuse on the PCB and make sure that the main switch and the differential are functioning properly.

  • 02

    It locks with a fault code and the reset doesn't solve it, or it triggers again immediately.

    Cause: If the safety circuit of the PCB is damaged, it cannot maintain the correct state after the reset.

    Try the reset two or three times spaced out over time: if the fault reappears the same and quickly, suspect the PCB.

  • 03

    The programmable thermostat indicates a heating demand, but the boiler does not turn on.

    Cause: The PCB receives that demand and activates the ignition; if the input circuit fails, the command is lost.

    Check the thermostat connection terminals on the PCB to ensure they are neither loose nor corroded before discarding it.

  • 04

    The circulation pump does not start when the boiler should be heating.

    Cause: The PCB sends the electrical signal to the pump; if the relay fails, the pump is left without power.

    Measure with a tester if there is voltage reaching the pump at the moment it should activate, before changing the PCB.

Fault codes for Ferroli that this part resolves.

CodeFaultDiagnosis and solution
A02Flame signal present with burner offThe control board (PCB) may give a false ionisation reading (parasitic currents/erroneous reading), causing the boiler to detect a flame with the burner off. First, check the electrode and wiring; if the issue persists, measure the ionisation signal at the PCB input or test/replace the board.

These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.

Technical data

Ferroli PCB data 39828240

Catalogue reference
39828240
Brand
Ferroli
Type of part
PCBs (control boards)
Units in stock
1 unit
Status
Refurbished
Warranty
1 year
Shipping
1-2 business days
Return
14 days

Data read on the part and in the manufacturer's documentation

What we have not been able to verify does not appear here.

Component manufacturer
Bertelli & Partners
Component code
DBM14A
Documentation

Manuals and technical documentation

Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.

Frequently Asked Questions

Frequently asked questions about the PCB 39828240

Who manufactures the PCB for the Ferroli Fersystem Tech 25C Ref. 39828240?
Bertelli & Partners, according to the PCB silkscreen and the transformer label.
What code does this Bertelli & Partners PCB have for the Fersystem Tech 25C?
DBM14A, clearly legible on both the PCB and the transformer label.
Is this PCB Ref. 39828240 compatible with a Ferroli Fersystem Box 25C?
Yes, the Fersystem Box 25C is on the list of boilers compatible with this PCB.
Is this PCB also suitable for a Ferroli Fersystem Tech 35A?
Yes, the Fersystem Tech 35A is among the compatible models, along with Tech 10A, 18A, 25A, 25C, and 35C.

Spare parts related to Ferroli Fersystem Tech

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14-day returnuninstalled parts
Technical supportwe verify your model
Bertelli & Partners Ferroli Fersystem Tech 25C PCB Ref. 39828240