Main PCB Saunier Duval Themafast F 24 E 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

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 light up any LEDs or respond to anything.

  Cause: The PCB does not supply power to its circuits, usually due to a blown fuse or a fault at the input.

  Measure with a multimeter if there is power at the main connector and check the fuse before replacing the PCB.

• 02

  A fault code remains fixed on the display and does not disappear even with a reset.

  Cause: Internal fault of the PCB that generates a persistent fault code.

  Note the exact code and compare it in the manual with other possible sources before considering the PCB as faulty.

• 03

  The boiler turns on and shuts off by itself after a few minutes.

  Cause: An intermittent fault in the PCB causes irregular safety shutdowns.

  Check the connectors and the wiring to the PCB, and verify if the cut occurs in the same way every time.

• 04

  The pump or the valve do not receive a command even though there is a demand for heating.

  Cause: A relay output from the PCB does not activate the corresponding component.

  Confirm the model and exact variant of your boiler against the list of compatible models, as this PCB is used in many different ranges (Isofast, Isotwin, Thema...) and it is important not to rely solely on the brand name.

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

PLCTHF24X

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.

voltage

24V

current

6A

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.