Saunier Duval ThemaClassic C 25 E Control PCB Ref. S1047000

Saunier Duval boilers compatible with reference S1047000

PCB with reference S1047000. 33 verified compatibilities: F 25 E and F 24 E.

Verified 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

The part reference, model, and equipment revision must be verified against the manufacturer's documentation.

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 that require diagnosis on the PCB S1047000

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 at all, without any prior warning symptoms.

  Cause: The control board sends the ignition command; if it fails, the boiler does not respond.

  Check the power supply and verify that the fuses on the PCB are not blown.

• 02

  The boiler does not respond to the controls, neither to the thermostat nor to the buttons on the unit itself.

  Cause: All controls go through the control board; if its circuit fails, external commands are not processed.

  Act directly on the buttons of the boiler, without an external thermostat, to rule out issues with the thermostat wiring.

• 03

  The main components (gas, ignition, pump) respond separately, but the boiler still won't start.

  Cause: If each component works in isolation but the system does not start, the fault is usually in the electronics that coordinate them.

  Please check the connector of the NTC sensor and the wiring to the PCB first: a poor connection can simulate a faulty board.

• 04

  The boiler intermittently locks out without a clear pattern, and sometimes it restarts on its own.

  Cause: A partial fault in the control board can cause inconsistent lockouts instead of a total fault.

  Note the time and circumstances of each blockage (cold, start-up, use of domestic hot water) before changing the PCB: it helps to distinguish an electronic fault from a mechanical one.

Fault codes Saunier Duval that require diagnosis

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

Uniclima internal SKU

CECSDTHMC25E

Brand

Saunier Duval

Type of part

PCBs (control boards)

Units in stock

0 units

Status

Refurbished

Warranty

1 year

Shipping

Delivery time shown at checkout

Return

14 days

Part data and available documentation

Contrast the label codes, PCB, and revision with the installed part; they are not necessarily equivalent references.

PCB code (silkscreen)

0310144400R18

Manufacturing index (adhesive label)

IND 3

Adhesive label code

S0000

Apparent production date

08/51

Number of bars

0020036711 00104 366

Additional silk-screened code

SYMSI7.0

Additional silk-screened code

KWD