Sung Wei Multifunction PCB for Saunier Duval Isofast F30E H-MOD 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 turn on or show any signs of life, not even the indicator on the panel lights up.

  Cause: The multifunction PCB manages the complete startup of the unit; if it does not receive power or there is a fault in the control circuit, the boiler does not respond.

  Check that 230V is reaching the PCB and that the internal fuse is not blown before replacing it.

• 02

  The control or thermostat is unable to start the boiler even though it is requesting heat.

  Cause: The PCB receives the demand signal and activates the other components; if the microcontroller does not process the signal, the unit does not respond.

  Check the connection of the thermostat or control cable to the PCB and make sure there are no loose or oxidized terminals.

• 03

  The boiler displays a fault code that doesn't match any actual gas, water, or draft fault.

  Cause: An internal fault in the PCB can generate erratic or repetitive fault codes even if the rest of the installation is correct.

  Cross-check the code with the manual of the model and rule out pressure issues, ignition and sensors before declaring the PCB faulty.

• 04

  The boiler shuts off by itself in the middle of operation and needs to be manually reset.

  Cause: A fault in the internal management of the PCB can cause spontaneous resets without any external cause.

  Note the time and the phase in which the cut occurs to rule out an electrical supply problem in the home.

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

CETF25EMOD

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.

Component manufacturer

Sung Wei

Screen printing

SYMSI7.0 | SUNG WEI 06V0-A

Manuals and technical documentation

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

• Saunier Duval F 35 E H-MOD Manual (PDF) Document © Saunier Duval, provided as a technical reference.