Saunier Duval Themaclassic F 25 E PCB Ref. S1047000

Saunier Duval boilers compatible with reference S1047000

PCB with reference S1047000. 33 verified compatibilities: F 25 E and F 24 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. S1047000 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 S1047000. 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 S1047000 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 turn on, and the display does not light up; it is completely dead.

  Cause: The PCB is not receiving power to supply the rest of the electronics.

  Check with the multimeter that 230V are reaching the PCB and inspect the fuses before replacing it.

• 02

  The pump or the gas valve do not start even though the boiler seems to be calling for heat.

  Cause: The relays on the PCB control these elements; if one fails, that output stops activating.

  With the boiler off, listen to see if the relay clicks when there is a demand; if it doesn't make a sound, the fault is likely there.

• 03

  The boiler is showing different fault codes every few days, with no apparent relation between them.

  Cause: The control circuit starts to fail erratically before failing completely.

  Keep a record of the fault codes that appear and when they occur; if they change without a pattern, it points more towards the PCB than a specific sensor.

• 04

  The boiler turns off by itself while in operation and turns back on after a while, without anyone touching anything.

  Cause: An intermittent fault in the PCB causes safety cuts that reactivate on their own.

  Check first that it is not a problem with water pressure or flue draft, as they present similar symptoms.

Fault codes from Saunier Duval that this spare part resolves.

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 S1047000 PCB.

Catalogue reference

S1047000

Brand

Saunier Duval

Type of part

PCBs (control boards)

Units in stock

7 units

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.

PCB code

S1047000

Batch 1

902038

Batch 2

443953

Batch 3

819755T0

Manufacturing index

KWD / IND 06 / S0097

Relays

OMRON G5Q-1-VH DC24V (China), 5A 30VDC / 10A 250VAC

Integrated circuit

COSMO 2010 4A35 013

Manuals and technical documentation

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

• Saunier Duval S C 24 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.