Huba Control Air Pressure Switch 605.99520 For Vaillant Boiler VMW 282 - Ref. 0020018138

Vaillant boilers compatible with reference 0020018138

Pressure switch with reference 0020018138. 18 verified compatibilities: 242-5 and 282-5.

Proven compatibility

Can't see your model or have questions? The printed reference takes precedence. How to check it · Send us a photo via WhatsApp.

How to check if ref. 0020018138 is the part for your boiler

What determines it is not the boiler model, but the reference printed on the part you already have installed.

1. Find the reference printed on the installed part and check whether it matches the catalogue reference 0020018138. If it is not visible, do not identify the part from its shape alone.
2. Check the full boiler model on its data plate and look for it in the model associations on this page.
3. Compare the connections and physical body with the original part before installation.
4. If anything is unclear, send us a photo of the marking via WhatsApp before placing your order.

Symptoms and faults that the pressure switch 0020018138 resolves.

The pressure switch controls the air or water pressure to authorize operation. These are the typical symptoms and what to do:

Common symptoms and faults

• 01

  The extractor starts, but the burner never ignites.

  Cause: The pressure switch does not close the contact because it does not detect the minimum required pressure, and the boiler cuts off the gas for safety.

  Before changing the pressure switch, check that the silicone tubes between the pressure switch and the fan are not damaged, bent, or have accumulated water.

• 02

  The screen shows a warning or blockage due to air pressure.

  Cause: The boiler displays this code when it does not receive the switching signal from the pressure switch within the expected time.

  First, check if the fan is spinning correctly and at the right speed: if the problem is there, changing the pressure switch will not solve it.

• 03

  The boiler sometimes ignites and sometimes it doesn't, without any apparent reason.

  Cause: A worn or dirty internal contact does not always switch at the same point, making the start unpredictable.

  Observe if the fault occurs more in cold conditions, after summer, or after many hours: this pattern helps to distinguish an unstable pressure switch from a worn-out fan with brushes.

• 04

  The extractor starts, sounds normal, but the boiler stops after a few seconds.

  Cause: The pressure switch thinks there is not enough draft even though the air circulates well, usually because the contact does not close completely.

  Check that the pressure connections are properly connected to their respective fittings and are not crossed.

Fault codes from Vaillant that this part resolves.

These symptoms can have more than one cause. If your boiler displays a fault code, send it to us via WhatsApp along with a photo of the labeling, and we'll tell you if this is the part.

Vaillant 0020018138 pressure switch datasheet

Catalogue reference

0020018138

Brand

Vaillant

Type of part

Pressure switches

Units in stock

3 units

Status

Refurbished

Warranty

1 year

Shipping

1-2 business days

Return

14 days

Data read on the part and in the manufacturer's documentation

What we have not been able to verify does not appear here.

Factory code

605.99520

Switching pressure (setpoint)

105/90 Pa

Actual manufacturer of the part

Huba Control AG (mechanical series 605)

Printed parameter (without interpretation)

0.2(0.1)/30~

Vaillant spare part reference

0020018138