Saunier Duval Isofast F35E H-MOD PCB 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

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 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 and faults that the PCB S10470 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 start and remains 'blank' when requesting heat from the thermostat.

  Cause: The PCB is the central control; if it does not process the heating request, it does not send the command to the burner.

  Check that the thermostat is sending a signal by directly bridging the terminals if possible, before considering that the PCB is faulty.

• 02

  The buttons on the panel are unresponsive, as if the boiler is not 'listening'.

  Cause: The panel communicates with the PCB; if that communication fails, the controls have no effect even though the PCB receives power.

  Check the connector and the cable between the panel and the PCB, ensuring that they are not loose or corroded, before replacing the electronics.

• 03

  The pressure switch, sensors, and gas valve have been checked, but the fault persists without explanation.

  Cause: With several relays managing the pump, valve, and burner, an internal fault in the PCB can cause scattered symptoms without a clear pattern.

  Request the complete error history of the boiler; a repeated pattern in a specific element may be more helpful than a generic fault.

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 S10470 PCB.

Catalogue reference

S10470

Brand

Saunier Duval

Type of part

PCBs (control boards)

Units in stock

1 unit

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.

Platform

SYMSI7.0

PCB code

0310144400S20

Service code

902123 KWD / S1047000 IND06 / 443953 / 859118T8 S0097

Relays

Omron (x3)

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.