Air Pressure Switch Saunier Duval Themafast NOx F 30 B 1 Ref. 0020124897
RefurbishedSaunier DuvalPressure switches

Air Pressure Switch Saunier Duval Themafast NOx F 30 B 1 Ref. 0020124897

30 €VAT includedIn stock · 1 unit

Pressure switch: refurbished spare part that controls air or water pressure to authorize operation. Useful if the boiler does not start or shows a draft error. Compatible with Thema NOX F25, Themafast NOX F30 (ref. 0020124897). Includes a one-year warranty and delivery within 2–4 working days in the EU.

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

Key Data

Reference
0020124897
Brand
Saunier Duval
Type of part
Pressure switches
Available units
1 unit in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 0020124897) equips these models. Verified compatibility; check the reference before purchasing.

Thema NOx / Themafast NOx

  • Thema NOx F25
  • Themafast NOx F30

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)
F2Safety lack of draft (SRC) or pressure switch.The air pressure switch does not switch when the fan starts due to lack of vacuum or internal fault; it can be checked by measuring continuity at its terminals during start-up and inspecting/cleaning tubes and venturi.
F33Air flow fault.The air pressure switch remains open and does not confirm flow/depression, blocking ignition; check with a multimeter if it changes state when the fan is activated and inspect the condition of hoses and venturi connections.
How do I know if this pressure switch is for my boiler?
Verify the reference 0020124897 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Huba part.
What is it used for?
The pressure switch controls the pressure/draught (of air in sealed systems) or water to authorize operation.
Is the boiler not starting or showing a draught fault?
If the fan spins but does not ignite, check the pressure tubes (loose/blocked), the diaphragm, and the 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 tightness of the pressure pipes and the switching of the contact.
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 NOx F 30 B 1

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