Saunier Duval Isomax F 35 H-MOD Sanitary Circulating Pump Xylem SDZ-2/DC Ref. 0020111412
RefurbishedSaunier DuvalPumps

Saunier Duval Isomax F 35 H-MOD Sanitary Circulating Pump Xylem SDZ-2/DC Ref. 0020111412

95 €VAT includedIn stock · 4 units

Circulating pump: reconditioned spare part that circulates water in the heating circuit. Useful if there is noise, water is not circulating, or radiators do not heat evenly. Reference 0020111412. 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
0020111412
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

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.081The boost has failed.Sanitary circulating pump (DHW loading/recirculation pump) blocked or faulty prevents flow in the micro-accumulator loading, causing overheating; verify by activating the loading pump actuator test (e.g., T.004) and checking rotation/consumption and DHW return.

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