Viessmann 100-W WB1A Air Pressure Switch 220/150 PA 7824453

Description

The Viessmann 100-W WB1A Air Pressure Switch 220/150 PA 7824453 is a genuine brand-new replacement air pressure switch designed for selected Viessmann Vitodens 100-W WB1A boilers. Supplied under manufacturer part number 7824453, this air pressure switch comes with a 12-month warranty. Before ordering, always confirm your boiler model, GC number, serial number and manufacturer part number to ensure compatibility.

The air pressure switch monitors the boiler’s fan and flue system by detecting the correct air pressure before ignition. A faulty air pressure switch may prevent the boiler from firing, cause lockouts or interrupt the heating cycle. As it forms part of the boiler’s safety system, installation and testing should be completed by a suitably qualified Gas Safe registered engineer.

Product Details

Brand: Viessmann
Part Type: Air Pressure Switch
MPN: 7824453
Warranty: 12 Months
Condition: Genuine Brand New

Boiler Compatibility

The Viessmann 100-W WB1A Air Pressure Switch 220/150 PA 7824453 is compatible with the following boilers:

Fits Appliance GC No.
100-W WB1A 18kW Heat Only (Serial No. 7179920) 41-819-12
100-W WB1A 24kW Combi (Serial No. 7179917) 47-819-04
100-W WB1A 24kW Heat Only (Serial No. 7179919) 41-819-10
100-W WB1A 24kW System (Serial No. 7179918) 41-819-09

Before ordering, please check your boiler model, GC number, serial number and Viessmann manufacturer part number 7824453 to ensure this is the correct replacement part for your appliance.

Delivery & Collection

Collection is available from our Newcastle showroom at Unit 5, Penn Street, Newcastle upon Tyne, NE4 7BG, subject to stock availability. We also offer fast UK delivery via Royal Mail First Class or DPD Next Day, with most orders arriving within one to two working days. Boiler components should be installed by a suitably qualified Gas Safe registered engineer.

Warranty

This brand-new genuine Viessmann boiler air pressure switch is supplied with a 12-month warranty. Warranty claims may be subject to inspection and confirmation that the component was correctly selected and professionally installed.

Returns

We accept returns within 30 days of delivery. The product must be unused, unfitted and returned in its original unopened packaging with all seals intact. We cannot accept returns for components that have been fitted, used, damaged or returned in an unsuitable condition. Please check the boiler model, GC number, edition, serial-number range and part number carefully before ordering.

If you need any help, our team is happy to assist. Please contact us by phone or WhatsApp chat.

Frequently Asked Questions

Is the Viessmann 7824453 air pressure switch compatible with my boiler?

This air pressure switch is compatible with the listed Viessmann Vitodens 100-W WB1A models. Always verify your boiler model, GC number, serial number and manufacturer part number before ordering.

What does the air pressure switch do?

The air pressure switch monitors the fan and flue system to confirm correct airflow before ignition, helping ensure safe boiler operation.

What symptoms may indicate a faulty air pressure switch?

Common symptoms include the boiler failing to ignite, intermittent lockouts, fan-related faults or no heating and hot water. Similar symptoms can also result from fan or flue issues.

How do I confirm that 7824453 is the correct replacement part?

Check your boiler model, GC number, serial number and confirm that Viessmann manufacturer part number 7824453 matches the original component or the official parts documentation.

Does this product come with a warranty?

Yes. This genuine brand-new Viessmann Air Pressure Switch 7824453 comes with a 12-month warranty.