Main Control PCB Saunier Duval Isotwin F 28 EA Ref. S10470

Saunier Duval boilers compatible with reference S10470

PCB with reference S10470. 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. S10470 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 S10470. 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 S10470

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 and does not show any indicator or fault code.

  Cause: If the power supply to the PCB does not work, no other circuit receives current to start.

  Check that power is reaching the PCB and that the internal fuse is not blown before replacing it.

• 02

  It locks up with a different fault code every few times it is turned on.

  Cause: The microprocessor on the PCB misinterprets the signals from the sensors when their components fail.

  Note the codes that appear; if they change without a pattern, focus more on the PCB than on a specific sensor.

• 03

  The remote control is unable to communicate with the boiler.

  Cause: The PCB controls the data link with the remote control, and a fault there interrupts the communication even if the remote control is functioning properly.

  Check the communication bus wiring before replacing the PCB.

• 04

  The boiler starts the ignition cycle but aborts it before producing a flame.

  Cause: The PCB interrupts the process when it detects a safety signal out of range, whether real or due to its own fault.

  Please confirm the exact reference of your PCB before ordering it: this unit has questionable printing between two possible codes.

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 S10470 PCB.

Catalogue reference

S10470

Uniclima internal SKU

PLCSTW24X

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

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.