Saunier Duval Themafast F25 E Circulating Pump Motor Wilo Ref. S1061800
RefurbishedSaunier DuvalPumps

Saunier Duval Themafast F25 E Circulating Pump Motor Wilo Ref. S1061800

80 €VAT includedIn stock · 4 units

Circulating pump: refurbished spare part that circulates the water in the heating circuit. Useful if there is noise, the water does not circulate, or the radiators do not heat evenly. Compatible with Themafast F 25 E H-MOD, Themafast F25E, Themafast F 30 E H-MOD (ref. S1061800). Includes a one-year warranty and delivery within 2–4 working days in the EU.

1
Consult via WhatsApp
Delivery in 2–4 working days
1-year warranty
14-day return
Technical support

Key Data

Reference
S1061800
Brand
Saunier Duval
Type of part
Pumps
Available units
4 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. S1061800) equips these models. Verified compatibility; check the reference before purchasing.

Themafast

  • Themafast F 25 E H-MOD
  • Themafast F25E
  • Themafast F 30 E H-MOD
  • Themafast F30E

Fault codes related to this part (not the entire boiler). They usually have more possible causes: first rule out electrodes, wiring/connections, and gas supply. Verified with ≥3 sources.

CodeWhat does it mean?Cause and diagnosis (this part)
F.23Safety shutdown due to excessive temperature difference (very reduced circulation).If the circulating pump (S1061800) is blocked or not rotating, the flow rate drops: the supply heats up quickly and the return remains cold, triggering F.23. Check the voltage to the pump, consumption/start-up, and actual flow rate (bleeding or test program if applicable).
F.24Safety shutdown due to excessively rapid temperature increase (lack of circulation).A faulty heating pump or one without flow causes a large rise gradient in the supply and triggers F.24. Check that the pump receives 230 V, starts, and that the system is correctly bled.
How do I know if this circulating pump is the one for my boiler?
Verify the reference S1061800 printed and ensure your model is on the list of compatibles; also compare the connections with the original part. It is a Wilo part.
What is it used for?
The circulating pump circulates the water through the heating circuit.
Noise, water not circulating, or cold radiators?
Typical symptoms: humming, seized rotor after a long stop, or radiators that do not heat evenly.
Which models is it suitable for?
Part shared by various models (see Compatibility). If your model does not appear, send us a photo of the marking and we will confirm it.
Installation and recommendations
Bleed the air from the circuit and the pump; check the pressure at 1–1.5 bar with the boiler cold.
What does refurbished mean and what coverage does it have?
Part removed from a boiler out of service, inspected and tested. Includes 1-year warranty and 14-day return policy. Delivery within 2–4 working days in the EU.

Spare Parts Related Boiler Themafast F25 E Wilo

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