Saunier Duval Hermann Thema NOx F24 Flue Gas Extractor Fan Ref. H035003719
RefurbishedSaunier DuvalExtractors

Saunier Duval Hermann Thema NOx F24 Flue Gas Extractor Fan Ref. H035003719

65 €VAT includedIn stock · 4 units

Extractor: refurbished spare part that evacuates combustion gases with forced draft. Useful if it doesn't start due to draft failure, makes noise, or doesn't spin. Compatible with Thema NOX F24, Thema F24 NOX, Supermicra Ecoplus 24 (ref. H035003719). 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
H035003719
Brand
Saunier Duval
Type of part
Extractors
Available units
4 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. H035003719) equips these models. Verified compatibility; check the reference before purchasing.

Thema NOx (Saunier Duval)

  • Thema NOx F24
  • Thema F24 NOx

Supermicra Ecoplus (Hermann)

  • Supermicra Ecoplus 24
  • Supermicra Ecoplus 24kW
  • Supermicra Ecoplus 24SE

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)
F2Airflow fault/air pressure switch (lack of draft).If the extractor fan does not start or does not generate the minimum depression, the pressure switch does not close and the boiler locks with F2; check the power supply voltage to the fan and that the pressure switch closes during start-up (differential pressure measurement).
F33Air flow fault (after St33 attempts).If the fan does not create sufficient depression or does not spin, the air pressure switch remains open and, after several ignition attempts (St33), F33 appears; check the fan's rotation/power supply and pressure in the pressure switch during startup.
F.32Fault: fan.Direct fault of the fan (winding/capacitor/Hall sensor) or its wiring prevents the PCB from detecting the rotation; check power supply, continuity, free rotation, and tachometer signal of the fan.
How do I know if this extractor/fan is the one for my boiler?
Verify the reference H035003719 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.
What is it used for?
The extractor/fan evacuates the combustion gases (forced draught).
Does it not start due to a draught fault, make noise, or not spin?
Seized, noisy, or unpowered fan.
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
Check the connector, the 230 V power supply, and free rotation.
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.

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