How do I know if this pressure switch is for my boiler?

Verify the reference 050518 printed and ensure your model is on the list of compatible ones; also compare the connections with the original part.

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.

RefurbishedVaillant Pressure switches

Vaillant Thermocompact VCW Vent 240 01 E Air Pressure Switch Ref. 050518

Name: Vaillant Thermocompact VCW Vent 240 01 E Air Pressure Switch Ref. 050518
Brand: Vaillant
SKU: PTVCW240
Price: 25 EUR
Availability: InStock

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 VC 112 E, VC 182 E, VC 242 E (ref. 050518). Includes a one-year warranty and delivery within 2–4 working days in the EU.

Consult via WhatsApp

Not sure if it's your part? Send us a photo of the screen printing via WhatsApp and we'll confirm compatibility before you purchase.

Delivery in 2–4 working days

1-year warranty

14-day return

Technical support

Key Data

Reference: 050518
Brand: Vaillant
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. 050518) equips these models. Verified compatibility; check the reference before purchasing.

THERMOcompact (VC ... E)

VC 112 E
VC 182 E
VC 242 E

COMBIcompact (VCW ... E)

VCW 182 E
VCW 242 E
VCW 282 E

How do I know if this pressure switch is for my boiler?: Verify the reference 050518 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.

Vaillant Thermocompact VCW Vent 240 01 E Air Pressure Switch Ref. 050518

Key Data

THERMOcompact (VC ... E)

COMBIcompact (VCW ... E)

Related Spare Parts Boiler Thermocompact VCW Vent 240 01 E