Junkers Euromaxx Air Pressure Switch ZWC28 1MF2A 23 Huba Control Ref. 87167715800
RefurbishedJunkersPressure switches

Junkers Euromaxx Air Pressure Switch ZWC28 1MF2A 23 Huba Control Ref. 87167715800

45 €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 ZWC 28/32-1MFA 23, ZWC28-1MF2A 23 (ref. 87167715800). 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
87167715800
Brand
Junkers
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. 87167715800) equips these models. Verified compatibility; check the reference before purchasing.

Junkers Euromaxx ZWC

  • ZWC 28/32-1MFA 23
  • ZWC28-1MF2A 23

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)
C4The pressure switch does not open in the rest position.The air differential pressure switch remains closed at rest due to an internal fault or water/dirt in the tubes, so the control board "sees" it as activated; check continuity at rest with a multimeter and inspect/clean tubes and venturi inlets.
C6The pressure switch does not close.With the fan running, the pressure differential is not reached, or the pressure switch (membrane/micro) fails and does not close; check closure by applying vacuum with a vacuum gauge or acting on the connection while measuring continuity, and inspect tubes, venturi, and extractor.
C1The pressure switch has activated during operation.During full combustion, the pressure switch opens due to an internal fault or a momentary loss of depression in the air/flue circuit; check the stability of the contact by measuring continuity during the cycle and inspect silicone tubes, venturi, and condensate drain.
How do I know if this pressure switch is for my boiler?
Verify the reference 87167715800 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part. It is a Huba piece.
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.

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