PCB (Control Board) ISOFAST F30E and Other Models - Ref. S10470
If your boiler does not start, locks out, or exhibits erratic behavior, a technical diagnosis must confirm whether you need the ISOFAST F30E Control PCB - Ref. S10470. This board is responsible for managing the ignition, burner modulation, pump, and safety features of the boiler. Its failure can cause the boiler to operate improperly. It is compatible with boilers from the ThemaClassic, Themafast, Thematek, and Isofast ranges, among other models such as the C 24 E and the F 30 E H-MOD. A technician must confirm through diagnosis whether it needs to be replaced upon detecting these symptoms to restore the operation of your system.
- Type of part
- PCBs (control boards)
- Status
- Refurbished
- Catalogue reference
- S10470
- Warranty
- 1 year
Saunier Duval boilers compatible with reference S10470
PCB with reference S10470. Nine confirmed compatibilities: C 24 E and C 25 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval C 24 E | ThemaClassic | Contrasted |
| Saunier Duval C 25 E | ThemaClassic | Contrasted |
| Saunier Duval F 24 E | ThemaClassic | Contrasted |
| Saunier Duval F 25 E | ThemaClassic | Contrasted |
| Saunier Duval F 25 E H-MOD | Themafast | Contrasted |
| Saunier Duval F 30 E H-MOD | Themafast | Contrasted |
| Saunier Duval SF 24 E | Thematek | Contrasted |
| Saunier Duval F 30 E H-MOD | Isofast | Contrasted |
| Saunier Duval F 35 E H-MOD | Isofast | Contrasted |
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.
- 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.
- Check the full boiler model on its data plate and look for it in the model associations on this page.
- Compare the connections and physical body with the original part before installation.
- 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 is completely off and does not respond.
Cause: The PCB does not receive or process the 230V power supply.
Check if there is power at the socket and at the input terminals of the PCB before replacing it.
- 02
The display shows a fault code that disappears after a reset and reappears later.
Cause: An intermittent fault in the electronic control generates temporary alerts.
Note when the fault code appears; if it coincides with the startup of any component, check that component first.
- 03
The boiler modulates the flame poorly, rising and falling without apparent reason.
Cause: The PCB does not maintain a stable signal that regulates the gas valve.
First, measure the gas inlet pressure and check the condition of the gas valve, as these can also cause this problem.
- 04
The remote control or the programmable thermostat is not communicating with the boiler.
Cause: Fault in the part of the PCB that manages communication with external devices.
Do not force, hit, or bridge the component. Request a technical check according to the equipment manual before deciding on its replacement.
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
- PLCTHMSD
- 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.
- Silkscreen marking in the photograph
- SYMSI7.0
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.
Frequently asked questions about the PCB S10470
Is the reference S10470 that appears on the Thematek C24E datasheet confirmed?
Spare parts related to Saunier Duval ThemaClassic
