Air Pressure Switch Ariston Micro Genus 23 MFFI 573989 01
RefurbishedAristonPressure switches

Air Pressure Switch Ariston Micro Genus 23 MFFI 573989 01

Ref. 573989-01

25 €VAT includedIn stock · 5 units

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 Micro Genus 23 MFFI (ref. 573989-01). 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
573989-01
Brand
Ariston
Type of part
Pressure switches
Available units
5 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 573989-01) equips these models. Verified compatibility; check the reference before purchasing.

Micro Genus

  • Micro Genus 23 MFFI

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)
E33The air pressure switch is closed before the ignition sequence.The air pressure switch 573989-01 can become 'stuck' or give a false signal due to inverted/blocked tubes; verify that with the fan stopped, the switch is open and that the signal changes correctly by checking continuity and pipes.
E34The air pressure switch does not close when the fan is operating.Diaphragm of the pressure switch 573989-01 fatigued or lack of depression in the flue circuit; check with a differential manometer that the threshold indicated in the manual (~0.55 mbar at maximum power) is reached and that the pressure switch activates when the fan starts.
How do I know if this pressure switch is for my boiler?
Verify the reference 573989-01 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 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 Micro Genus 23 MFFI 573989 01

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