Wiesberg Sauber CTFS 24 F Control PCB Ref. 2695630031
When you open the tap or turn on the heating, the Wiesberg Sauber CTFS 24 F Control PCB Ref. 2695630031 is responsible for managing the ignition and modulation of the burner, as well as controlling the pump and the safety features of the boiler. If this part fails, you will notice that the boiler does not start, gets locked, or exhibits erratic behavior. It is compatible with boilers from the brands Fondital, Nova, and Unical, such as the Delfis CTFS 24, Florida VELA CTFS 24, and DUA CTFS 24 models, among others. It is recommended to replace it when experiencing these symptoms to maintain the proper functioning of the boiler.
Compatible Wiesberg boilers
PCB. Seven confirmed compatibilities: Delfis CTFS 24 and Formentera CTFS 24.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Wiesberg Delfis CTFS 24 | Fondital | Contrasted |
| Wiesberg Formentera CTFS 24 | Fondital | Contrasted |
| Wiesberg Itaca CTFS 24 | Fondital | Contrasted |
| Wiesberg Florida VELA CTFS 24 | Nova | Contrasted |
| Wiesberg DUA CTFS 24 | Unical | Contrasted |
| Wiesberg RSN 24 | Wiesberg | Contrasted |
| Wiesberg RSS 24 | Wiesberg | 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 it 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 —. If it is not visible, do not identify the part by 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 (control board) 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 is completely off, neither the display nor the fan show any signs of life.
Cause: The PCB is not distributing power to the other components of the boiler.
Check that there is power at the input of the PCB and that the fuse is not blown before replacing it.
- 02
A fault code appears on the display that keeps repeating even after you reset the boiler.
Cause: The electronics block operation when detecting an out-of-range reading from a sensor.
Note the code and compare it with the manual: sometimes it indicates an external sensor, not the PCB itself.
- 03
You increase or decrease the temperature on the control and the boiler does not respond.
Cause: The microprocessor is not processing the command or is not receiving the signal from the remote control.
Try bypassing the thermostat directly on the boiler to rule out a wiring issue.
- 04
The heating turns on but the circulation pump does not start.
Cause: The relay on the PCB that activates the pump does not switch correctly.
With the boiler calling for heat, measure with a multimeter if there is output current at the pump connector.
- 05
The boiler starts up and stops by itself several times in a row without any apparent reason.
Cause: A fault in the PCB generates unstable readings that trigger unsolicited start and stop cycles.
Check that the connectors on the PCB are properly fitted and free of moisture 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.
Wiesberg PCB data sheet
- Brand
- Wiesberg
- Type of part
- PCBs (control boards)
- Units in stock
- 1 unit
- Status
- Refurbished
- Warranty
- 1 year
- Shipping
- Delivery time shown at checkout
- 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.
- Relay
- SIEMENS
- EPROM chip
- H133A
- The current catalog names the model 'Wiesberg Sauber CTFS 24 F', which does not literally match the confirmed compatible models (Wiesberg RSN 24 / RSS 24); please check the exact model of your boiler.
Frequently asked questions about the PCB (control board)
Does this CTFS 24 PCB work for a Fondital Delfis, or do we need to check the exact model?
Does this PCB work for a Wiesberg RSN or RSS 24 boiler?
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