
Saunier Duval Combitek C 23 PCB Ref. 0310118100A1
Control PCB from Saunier Duval, with screen-printed logo on the PCB, code 0310118100A1 and batch 5DK 88 49. It operates at 230V. It is compatible with the Saunier Duval Combitek C 23 boiler. It is replaced when the electronic control of the boiler fails.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 057445
PCB with reference 057445. Two confirmed compatibilities: Combitek C23 and Combitek C23E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Combitek C23 | Combitek | Contrasted |
| Saunier Duval Combitek C23E | Combitek | 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 the ref. 057445 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 057445. 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 057445 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 when connected: neither the display nor the pumps work, as if it is not receiving power.
Cause: The PCB requires 230V to operate, and if its power supply fails, no current reaches the rest of the electronics.
Measure with a multimeter that the 230V from the mains is correctly reaching the input terminal block of the PCB before replacing it.
- 02
The display works, but the boiler does not respond when requesting heating or domestic hot water.
Cause: The PCB receives the demand, but it does not activate the output that ignites the burner.
Check that the thermostat or the domestic hot water tap is actually sending the signal before assuming that the PCB is faulty.
- 03
Error codes appear and disappear without a clear relation to the use of the boiler.
Cause: A fault in the electronic control causes unstable readings in the sensors managed by the PCB.
Note the code and the moment it appears: it may indicate a loose sensor and not a fault in the entire PCB.
- 04
The boiler turns on and off after a few seconds, intermittently.
Cause: A faulty relay contact interrupts the power supply to a component necessary to maintain the flame.
Check the connectors on the PCB, ensuring they are properly seated and free of oxidation, before replacing it.
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 057445 PCB.
- Catalogue reference
- 057445
- 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.
- Manufacturer
- Saunier Duval
- PCB code
- 0310118100A1
- PCB code (printed on the top)
- ST13380
- Voltage
- 230V
- Secondary code / screen-printed batch
- 5DK 88 49












