Main PCB Saunier Duval Themaclassic F24 E (IRIS 1.0) — Ref. S1008200
Main PCB IRIS 1.0 for the Saunier Duval Themaclassic F24 E. It manages ignition, modulation, and all safety features (fan, pump, gas valve, and sensors). If your boiler shows faults F1/F2/F3, overheating, or random resets, this PCB may be the cause after ruling out peripherals.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with the reference S1008200
PCB with reference S1008200. Four confirmed compatibilities from two independent sources: F 24 E and C 24 E.
Compatibility confirmed
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval F 24 E | Themaclassic | Confirmed · 2 sources |
| Saunier Duval C 24 E | Themaclassic | Confirmed · 2 sources |
| Saunier Duval F 24 E / F 24 E BT | Thematek | Confirmed · 2 sources |
| Saunier Duval F 30 E | Themafast | Confirmed · 2 sources |
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 the part S1008200 is the one for your boiler.
What determines it is not the boiler model, but the reference printed on the part you already have installed.
- Array
- Array
- Array
- Array
- Array
- Array
Symptoms and faults that the PCB S1008200 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
Boiler off or random restarts without a pattern
Cause: Source/filtering of the IRIS 1.0 PCB degraded
Measure 230 V at the ALIM 230 V terminals and check secondary voltages; inspect capacitors and solder joints.
- 02
F1/F4 persistent without spark
Cause: Ignition/ionization stage on faulty PCB
Check the electrode and cable; if they are OK and there is no high voltage, the PCB may be faulty.
- 03
F2 when starting with fan off
Cause: Fan output (relay/triac) on PCB
Check 230 V to the fan at startup; if there is no voltage and the fan is fine, suspect the PCB.
- 04
F5 with cold radiators
Cause: Pump not controlled by the PCB or air in the circuit
Check 230 V at the demand pump; bleed the system and check the limiter.
- 05
Erratic temperature readings (intermittent F14)
Cause: NTC input or unstable mass on the PCB.
Measure NTCs and their harness; if values are correct, check connectors/NTC input on PCB.
- 06
Keyboard/display unresponsive but PCB LEDs active.
Cause: Communication fault with user PCB
Check user PCB (S1008100) and bus; if the main one does not power/interrogate, possible fault in IRIS 1.0.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F1 / F4 | Ignition fault (no gas or flame not detected) | Check the gas supply, ignition/ionization electrode, and wiring. If there is demand and there is no spark or voltage at the valve, suspect the ignition module on the IRIS 1.0 PCB after ruling out peripherals. |
| F2 | Air/exhaust fault (ventilation-pressure switch) | Check for blockages in the chimney, pressure switch tubes, and fan. If the fan is working and does not receive 230 V from the PCB at startup, there may be a fault with the fan output/relay on the PCB. |
| F3 | Repetitive air fault | Same causes as F2; check the continuity of the pressure switch and its piping. If the pressure switch activates and the PCB does not manage the cycle correctly, evaluate the PCB. |
| F5 | Overtemperature (limiter/safety) | Bleed the system, check the pump and limiter. If the pump and NTCs are correct but the PCB does not power the pump or does not stop the burner, the PCB may be damaged. |
| F9 | Other faults in safety loops/sensors (e.g., pressure/flow) | Check the pressure/flow sensor and connectors. If the values are correct and the issue persists, there may be a reading/input fault on the PCB. |
| F14 | Heating temperature >95 °C (CTN heating) | Check the NTC sensor on the supply side and its wiring. If the NTC measures correctly and still shows F14, assess the A/D conversion/NTC input on the PCB. |
| F17 | Mains voltage too low (<170 V) | Check the electrical network and grounding connection. Usually unrelated to the PCB; if it only occurs in your boiler, check the source/filtering of the IRIS 1.0. |
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 S1008200 PCB.
- OEM reference
- S1008200
- Brand
- Saunier Duval
- Type of part
- PCBs (control boards)
- Units in stock
- 8 units
- 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.
- Type
- Main PCB IRIS 1.0 (Themaclassic F24 E)
- Power supply
- 230 V~ 50 Hz (screen printing ALIM 230V)
- OEM Ref.
- S1008200 (equiv. 1008200)
- Replacement/retrofit
- SYMSI 7.0 S1047000 (kit 0020017592) according to documentation
- Identification on PCB
- IRIS 1.0 / IRIS10; family 120401 (e.g., 4000 120401/8)
- Prior gas and power cut. Check for the absence of 230 V before handling.
- Respect the tightening torque of terminals; replace gaskets/joints that are single-use.
- After the change, perform hydraulic bleeding and a complete combustion/safety test.
- If SYMSI 7.0 (S1047000) is installed, follow the conversion sheet of kit 0020017592 (wiring/parameterization).
- Do not bypass safety devices (pressure switch, limiter, sensors). Serious risk.
Frequently asked questions about the PCB S1008200
Does this PCB work if my Themaclassic F24 E already has SYMSI 7.0?
Do I need to program anything after changing the IRIS 1.0?
I see F1 and sometimes F2: is it certain that the PCB is faulty?
Spare parts related to Saunier Duval Themaclassic
