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The Baxi 7224342 Pressure Differential Assembly (PDA) is a critical component designed for professional heating engineers and technicians maintaining compatible Baxi, Potterton, and Main boiler systems. This genuine spare part is vital for monitoring air pressure and ensuring the burner ignites only when the flue system is operating correctly, though it must be installed exclusively by a Gas Safe certified professional to maintain safety standards and system integrity.
| Model Part Number | 7224342 |
|---|---|
| Brand | Baxi |
No. All boiler spare parts must be fitted by a qualified and certified Gas Safe engineer to ensure safety and legal compliance.
Yes, the 7224342 is a genuine manufacturer-approved Baxi spare part.
Check your boiler's manual or data plate to see if the part 7224342 or GC No. 343-619 is listed for your specific model.
The GC number for this assembly is 343-619.
The assembly is the main unit; please verify with your supplier if hoses are included in your specific kit or if existing ones can be reused.
A Gas Safe engineer should test the PDA to ensure it is registering the pressure change from the fan correctly.
Check the silicone tubes connected to the PDA for blockages or cracks, or replace the assembly if internal membrane fatigue is suspected.
Installation must only be performed by a Gas Safe registered engineer. Before installation, confirm the model compatibility against your boiler's technical manual and the GC number 343-619. When handling the assembly, ensure the electrical connections are clean and securely seated. During regular boiler servicing, an engineer should check the assembly for debris or signs of wear, as internal contamination can cause erratic performance or false pressure readings.
