Saunier Duval Thema Condens F25 A1 PCB Ref. 0010028087
The Saunier Duval Thema Condens F25 A1 PCB is the component that controls the ignition, burner modulation, pump, and safety features of the boiler. If this part fails, the boiler may not start, become locked, or operate erratically. You may notice symptoms such as fault codes F.63, F.64, or F.70. This board is compatible with several models in the Thema Condens range, such as the F25, F25 A1, and AS 25 A, among others. It is recommended to replace it when it shows faults in its operation.
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Consult via WhatsAppSaunier Duval boilers compatible with reference 0010028087
PCB with reference 0010028087. 12 verified compatibilities: F25 and F25 A1.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval F25 | Thema Condens | Contrasted |
| Saunier Duval F25 A1 | Thema Condens | Contrasted |
| Saunier Duval AS 25 A | Thema Condens | Contrasted |
| Saunier Duval 25-A | Thema Condens | Contrasted |
| Saunier Duval 25-A R2 | Thema Condens | Contrasted |
| Saunier Duval 30-A | Thema Condens | Contrasted |
| Saunier Duval F25 | Themafast Condens | Contrasted |
| Saunier Duval F30 A1 | Themafast Condens | Contrasted |
| Saunier Duval 25-A | Themafast Condens | Contrasted |
| Saunier Duval 30-A | Themafast Condens | Contrasted |
| Saunier Duval F25 | Semia Condens | Contrasted |
| Saunier Duval Micra Plus Condens 25 | Hermann | 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. 0010028087 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.
- Find the reference printed on the installed part and check whether it matches the catalogue reference 0010028087. 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 and faults that the PCB 0010028087 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 ignite and shows no signs: no display, no pump, no attempt to ignite.
Cause: The BMU is the main control unit that initiates the ignition; if it fails, no component receives a command.
First, check the main power supply and the fuse of the PCB: a BMU without power shows the same symptom as a faulty BMU.
- 02
Electronic faults without visible mechanical cause: the boiler locks out without finding anything loose or dirty.
Cause: As the unit that centralizes all control logic, an internal fault of the BMU leaves no mechanical trace.
Check the accessory connectors and outputs on the PCB before replacing it: a bent pin or a poorly seated connector can mimic an electronic fault.
- 03
The boiler operates erratically: sometimes it ignites properly and other times it shuts down for no reason.
Cause: A BMU with an intermittent fault in its internal circuits generates inconsistent behaviors in starting and regulation.
Perform several ignition cycles and note whether the fault depends on whether the boiler is cold or hot: this pattern helps to distinguish a fault in the PCB from a thermal one.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F.63 | EEPROM fault. | The EEPROM memory of the main PCB is damaged/corrupted; if NTCs and wiring are correct, the cause is the PCB. Check voltages and, if it persists, reprogram/replace the PCB. |
| F.64 | Fault in the electronics / NTC. | If the NTC sensors and their wiring do not present shorts or inversion, the fault is in the PCB electronics (measurement/processing stage). Check NTCs and continuity; if okay, replace the PCB. |
| F.65 | Fault: electronics temperature. | The PCB detects overheating or its internal sensor/power stage is faulty. Check ventilation/temperature and dissipation; if everything is correct, the cause is the PCB. |
| F.67 | Fault: electronics/flame. | The flame detection/control circuit on the PCB is not plausible or defective. Check the ionisation signal and grounding; if they are correct, replace the PCB. |
| F.70 | Invalid product code (DSN). | After replacing the display and PCB without readjusting the DSN or with incorrect coding resistance, the PCB locks the equipment. Verify/adjust DSN and resistance; if not accepted, incorrect/defective PCB. |
| F.32 | Fault: fan. | When the motor and wiring are fine, the fault may be with the PCB (multiple connector on PCB, output/driver, or PWM control). Check the power/signal from the PCB to the fan; if there is no correct output, replace the PCB. |
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 PCB 0010028087
- Catalogue reference
- 0010028087
- Brand
- Saunier Duval
- Type of part
- PCBs (control boards)
- Units in stock
- 5 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.
- PCB code
- 0020165023
- Secondary PCB code
- 0010000258
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval Thema Condens F25 Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the PCB 0010028087
When should the BMU PCB of the Thema Condens F25 A1 be replaced?
Is this PCB Ref. 0010028087 suitable for the Hermann Micra Plus Condens 25?
Is the same PCB for the Thema Condens F25 and the Thema Condens F30?
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