Main PCB Saunier Duval Combitek F 23 E - Ref. 05741000

Saunier Duval boilers compatible with reference 05741000

PCB with reference 05741000. Eight confirmed compatibilities: C 23 E and F 23 E.

Proven compatibility

Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.

How to check if ref. 05741000 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 05741000. 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.

Symptoms and faults that the PCB 05741000 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 does not ignite the burner and seems completely dead.

  Cause: The main PCB does not send the necessary commands to ignite the burner and the auxiliary components.

  Check that power is reaching the PCB (input fuse, main switch) before considering the board as faulty.

• 02

  The display is completely off, as if no power is reaching it.

  Cause: The PCB itself or the fuse that protects it may fail, which usually blows to prevent damage to the rest of the circuit.

  Check if the fuse on the PCB is blown at a glance or with a multimeter: it's the quickest and most cost-effective check.

• 03

  You can hear the relays clicking, but the boiler doesn't start or show any other symptoms.

  Cause: The relays are working, but the complete signal to activate the pump, the fan, and the ignition in the correct order is not reaching.

  Note what activates (pump, fan) and what does not: this sequence helps to determine if the fault is with the PCB or with a connected component.

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.

Data sheet for the Saunier Duval 05741000 PCB.

Catalogue reference

05741000

Brand

Saunier Duval

Type of part

PCBs (control boards)

Units in stock

1 unit

Status

Refurbished

Warranty

1 year

Shipping

Delivery time shown at checkout

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.

Silkscreened PCB code

ST1485-E CAD 0025

Voltage

230V

Fuse without pilot flame (sans veilleuse)

200mA T

Pilot light fuse (avec veilleuse)

1A T

Relay code

23930-A

Date/lot marking

1293 (possible week/year of manufacture, not a product reference)

Barcode code

800081335 4 / LCX 29:17

Manuals and technical documentation

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

• Saunier Duval F 23 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.