Grundfos Circulating Pump UP 15-50 A0 Saunier Duval Thematek F24 EBT Ref. S10057
Grundfos UP 15-50 A0 circulator pump (P/N 59994584), installed in the hydraulic group of Saunier Duval Thematek/Renova Star F24 E boilers. It moves the water in the heating circuit. It operates at 230V~ 50Hz, 85W, IP44. It is replaced when it does not start, makes noise, leaks from the shaft, or the boiler does not heat due to lack of circulation.
Saunier Duval boilers compatible with reference S10057
Hydraulic group with reference S10057. Four confirmed compatibilities: Star C 24 E and Star F 24 E.
Proven compatibility
| Boiler model | Family | Verification |
|---|---|---|
| Saunier Duval Star C 24 E | Renova | Contrasted |
| Saunier Duval Star F 24 E | Renova | Contrasted |
| Saunier Duval C 24 E | Thematek | Contrasted |
| Saunier Duval F 24 E | Thematek | 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 part S10057 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.
- Find the reference printed on the installed part and check whether it matches the catalogue reference S10057. 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 hydraulic group S10057 resolves.
The hydraulic group includes the valve, the by-pass, and the water connections. These are the typical symptoms and what to do:
Common symptoms and faults
- 01
The boiler ignites but does not heat or heats very slowly.
Cause: If the pump does not move water through the circuit, the heat is not distributed and the boiler eventually shuts down due to overheating.
Bleed the air from the highest point of the circuit before declaring the pump faulty.
- 02
There is noise or vibration in the pump area when starting the heating.
Cause: The rotor may have accumulated scale or be partially seized after a period of inactivity, which is typical after the summer.
With the boiler turned off and cold, try to turn the shaft by hand from the front slot, if the model allows it.
- 03
The pump does not rotate, it gets stuck.
Cause: The rotor seizes due to limescale deposits when the water is hard or the pump has not been functioning for a while.
Try the same manual unlocking before considering the pump lost; sometimes it is enough to free the shaft once.
- 04
There is a water leak from the motor shaft.
Cause: The mechanical seal wears out with years of continuous use.
Dry the area and compare in cold and hot to distinguish an active leak from simple condensation.
- 05
The boiler is locking out with a circulation fault warning.
Cause: The control board does not detect the expected flow and shuts off for safety before forcing the heat exchanger.
Confirm the pressure on the manometer and ensure that there are no closed valves in the circuit before replacing the pump.
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.
Hydraulic group data Saunier Duval S10057
- Catalogue reference
- S10057
- Brand
- Saunier Duval
- Type of part
- Hydraulics
- Units in stock
- 0 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
- Type UP 15-50 A0
- Manufacturer code (P/N)
- 59994584
- Production Code (PC)
- 0423HHD
- Voltage
- 230V~ 50Hz
- Condenser
- 2 µF
- Nominal current
- In 0.38 A
- Nominal power
- Pn 85 W
- Protection
- IP 44
- Insulation class
- Class F
- Maximum pressure
- Max. 3 bar
- Thermal code (TF)
- TF 95
- IWC code
- 4000120626
- The reference S10057 is from the spare parts catalog of Saunier Duval, not a Grundfos manufacturer code; the factory code of the pump is P/N 59994584.
Frequently asked questions about the hydraulic group S10057
What brand of pump is used in the hydraulic group of the Saunier Duval Thematek F24 EBT?
What is the factory code for the Grundfos pump Ref. S10057?
Is this Grundfos pump an original part from Saunier Duval or a spare part from another manufacturer?
What power and voltage does the pump of the hydraulic group of the Thematek F24 EBT consume?
When should the circulation pump of the Saunier Duval Thematek F24 EBT be replaced?
Is this Grundfos pump Ref. S10057 compatible with the Renova Star F 24 E?
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