Viessmann
Viessmann Flapper (Air/Fuel) RU 7822789
Air/fuel flapper, part 7822789, for Viessmann Vitodens WB2A and WB2B gas boilers.
At a glance
- Also known as 2320234
£45.60
£38.00 ex. VAT · VAT at 20%
Same-day dispatch
Ordered by 4pm Mon–Fri, 10:30am Sat.
30-day returns
Unused, in original packaging.
What it is
The FLAPPER (AIR/FUEL) RU is an air/fuel flapper manufactured by Viessmann for Vitodens gas boilers. It sits in the air and gas mixture path and is fitted to WB2A and WB2B series appliances built from 21 November 2003 onwards. It is supplied under Viessmann part number 7822789.
Signs this part needs replacing
- Unstable or inconsistent combustion, with the boiler failing to hold a steady flame
- Repeated lockouts or ignition faults traced to the air/fuel mixture path
- Whistling, fluttering or chattering from the air intake or fan area
- Visible distortion, hardening or damage to the flapper where it seats
- Combustion readings outside the expected range that cannot be corrected by routine servicing
Before you order
- Confirm the appliance model and serial number against the fit list above
- Check the appliance build date, as this part applies from 21.11.2003
- Inspect the existing flapper and compare it with the part number shown here
- Gas-related work must be carried out by a competent registered engineer
Compliance
| Alternative numbers | 2320234 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 200-W WB2B 19KW SERIAL No. 7248823 | 41-819-14 | 41-819-14 | — | — |
| VIESSMANN VITODENS WB2A COMBI 26KW | — | — | — | |
| VIESSMANN VITODENS WB2A COMBI 26KW SERIAL No. 7176541 | 47-819-06 | 47-819-06 | — | — |
| VIESSMANN VITODENS WB2A SYSTEM 26KW | — | — | — | |
| VIESSMANN VITODENS WB2A SYSTEM 26KW SERIAL No. 7176543 | 41-819-11 | 41-819-11 | — | — |
Documents & drawings
Everything we hold for this part. Where a document exists but we don't hold it, the technical team will source it from the manufacturer — usually the same working day.
No documents held for this part. The technical team will source them from the manufacturer — usually the same working day.
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