Saunier Duval Combitek F 23 E Circulating Pump - Ref. 05123600 / P/N 59714427
Saunier Duval offers the Combitek F 23 E Circulating Pump - Ref. 05123600 / P/N 59714427, which is responsible for moving water through the heating circuit of your boiler. If it fails, you will notice cold radiators, strange noises, overheating, or blockages due to lack of circulation. This pump is compatible with various models, such as Themis 23 E, Thelia 23 CE, and others from the Combitek range, among others. It is advisable to replace it when it shows faults or when the mentioned symptoms become evident.
VAT included
Consult via WhatsAppSaunier Duval boilers compatible with reference 05123600
Circulating pump with reference 05123600. 25 verified compatibilities: 23 and 23 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval 23 | Themis | Contrasted |
| Saunier Duval 23 E | Themis | Contrasted |
| Saunier Duval 214/23 | Themis | Contrasted |
| Saunier Duval 214/23 CE | Themis | Contrasted |
| Saunier Duval 223 | Themis | Contrasted |
| Saunier Duval 223 CE | Themis | Contrasted |
| Saunier Duval 123 | Themis | Contrasted |
| Saunier Duval AS 14 | Themis | Contrasted |
| Saunier Duval AS 23 | Themis | Contrasted |
| Saunier Duval 23 CE | Thelia | Contrasted |
| Saunier Duval 23E CE | Thelia | Contrasted |
| Saunier Duval 623 | Thelia | Contrasted |
| Saunier Duval 623 CE | Thelia | Contrasted |
| Saunier Duval 623E CE | Thelia | Contrasted |
| Saunier Duval AS 23 | Thelia | Contrasted |
| Saunier Duval C 23 | Combitek | Contrasted |
| Saunier Duval C 23 E | Combitek | Contrasted |
| Saunier Duval F 23 | Combitek | Contrasted |
| Saunier Duval F 23 E | Combitek | Contrasted |
| Saunier Duval C 23 E | Thema | Contrasted |
| Saunier Duval C AS 23 E | Thema | Contrasted |
| Saunier Duval F 23 E | Thema | Contrasted |
| Saunier Duval F AS 23 E | Thema | Contrasted |
| Saunier Duval C 23 E | Themaplus | Contrasted |
| Saunier Duval F 23 E | Themaplus | 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. 05123600 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 05123600. 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 circulator pump 05123600 resolves.
The circulation pump circulates the water in the heating circuit. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The pump does not start when the heating command is given, or it struggles to turn.
Cause: The impeller can get stuck due to limescale if the pump has been idle for a long time, and the motor cannot overcome that resistance.
With the cold installation, try to free the shaft by turning it by hand through the front slot before replacing the pump.
- 02
The heating system does not distribute heat properly: some radiators heat up while others remain cold.
Cause: If the flow rate driven by the pump is low, the hot water does not reach the entire circuit with sufficient pressure.
Check that the thermostatic valves and the valves of each radiator are open before suspecting the pump.
- 03
The pump starts, runs for a while, and stops on its own without any apparent reason.
Cause: The motor thermal protection cuts off the power when it detects that the pump is forcing more than it should, for example, due to an impeller that is rotating with difficulty.
Disconnect the boiler for a few minutes and check if the pump resets itself upon restarting; if it triggers immediately, the problem persists.
- 04
Water is seen dripping from the body or the shaft of the pump.
Cause: The shaft seal loses tightness with use and allows water to pass through even though the rest of the circuit is fine.
Check that the leak is actually coming from the pump shaft and not from a nearby fitting or bleed valve before replacing it.
Fault codes from Saunier Duval that this spare part resolves.
| Code | Fault | Diagnosis and solution |
|---|---|---|
| F.22 | Safety shutdown: lack of water | A blocked/defective circulator pump or one with insufficient performance reduces the flow rate, and the boiler interprets it as a lack of water; check by forcing the pump from service mode and verifying electrical supply and rotation/flow rate. |
| F.23 | Safety shutdown: excessive temperature variation | If the pump is blocked or underperforming, the ΔT flow/return increases and the block overheats differentially; check the actual rotation of the rotor, bleed air, and ensure the ΔT normalises after unblocking/replacing the pump. |
| F.24 | Safety shutdown: temperature rise too fast | The lack of circulation due to a blocked/faulty pump causes a sudden rise in temperature; verify by activating the pump in service test and confirming that there is flow and the temperature does not spike when the pump is restored. |
| F.75 | Fault: no pressure change detected when the pump starts | At the start, the electronics expect a pressure jump created by the pump; if it is faulty or not moving water, there is no variation and F.75 appears; check by forcing the pump and observing that the pressure does not change, and measuring the pump's power supply/consumption. |
| F.89 | Error: pump | The boiler detects a pump fault (not connected, poorly connected, incorrect model, or short circuit); check continuity and wiring, pump reference/brand, and ensure it receives the correct signal/voltage. |
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 circulator pump 05123600
- Catalogue reference
- 05123600
- Brand
- Saunier Duval
- Type of part
- Pumps
- Units in stock
- 4 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.
- Model
- Type UP 15-40/SD
- P/N (component code)
- 59714427
- PC (batch)
- 0122
- Voltage / frequency
- 230V~ 50Hz
- Power (P1)
- 95 W
- Current (Im)
- 0.41 A
- Condenser
- 2 µF
- Thermal protection
- TF 95
- IP rating
- IP 44
- Insulation class
- Class H
- Maximum pressure
- 8 bar
- Saunier Duval catalog reference
- 05123600
Manuals and technical documentation
Official documentation of the boiler, useful for locating the part and cross-referencing the fault codes.
- Saunier Duval F 23 E Manual (PDF)Document © Saunier Duval, provided as a technical reference.
Frequently asked questions about the circulator pump 05123600
What is the difference between the code of this pump and the catalog reference 05123600?
Is this UP 15-40/SD pump suitable for a Saunier Duval Thelia 23 E?
What power and protection does this pump from Saunier Duval Combitek and Thelia have?
Does this pump work for a Saunier Duval Themis 123?
Spare parts related to Saunier Duval Themis
