Air Pressure Switch Vaillant Turbomax PRO VMW ES 242 2 3 Huba Ref. 0020018138
RefurbishedVaillantPressure switches

Air Pressure Switch Vaillant Turbomax PRO VMW ES 242 2 3 Huba Ref. 0020018138

15 €VAT includedIn stock · 4 units

Pressure switch: reconditioned 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 242-5, 282-5, 242/2-5 (ref. 0020018138). Includes a one-year warranty and delivery within 2–4 working days in the EU.

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

Key Data

Reference
0020018138
Brand
Vaillant
Type of part
Pressure switches
Available units
4 units in stock
Status
Refurbished
Warranty
1 year
Shipping
2–4 working days (EU)
Return
14 days

The same part (ref. 0020018138) equips these models. Verified compatibility; check the reference before purchasing.

VM

  • 242-5
  • 282-5
  • 242/2-5
  • 282/2-5

VMW

  • 242-5
  • 282-5
  • 242/2-5
  • 282/2-5

VMI

  • 282-7

Turbomax Plus

  • 824E
  • 828E
  • 837E

Turbomax Pro

  • 24E
  • 28E

Thermocompact

  • 615E
  • 620E
  • 624E
  • 628E

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.33The pressure switch does not turn on.The air pressure switch (manometric capsule) does not close upon start-up due to lack of depression/draught or internal fault; check the tubes and chimney, and ensure it switches (clicks) by blowing/sucking the tube and measuring continuity at the terminals during start-up.
What is this pressure switch used for?
In sealed boilers, it monitors the pressure/draught of the flue circuit: it confirms that the fan and the exhaust are functioning before authorising ignition (draught safety). The water one monitors the pressure of the circuit.
How do I know it's from my boiler?
Check reference 0020018138 and ensure your model is on the list of compatibles; compare the set pressure, pipe connections, and connector. It is usually a Huba pressure switch AP.510.
My boiler won't start or shows a draught fault, is this it?
It could be: if the fan spins but the boiler does not ignite and shows a draft/ventilation fault, check the pressure tubes (loose/blocked), the pressure switch diaphragm, and the fan itself before replacing.
Which models is it suitable for?
Part shared by various models (see Compatibility). If your model does not appear, send us a photo and we will confirm it.
How is it checked?
With the boiler in demand and the fan running, the switching of the contact and the tightness of the pressure tubes are checked. A technician can measure the continuity of the microswitch.
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 Turbomax PRO VMW ES 242 2 3 Huba

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