Viessmann
Viessmann Ignition Transformer BW12126-00
Viessmann ignition transformer BW12126-00 for Vitodens 200-W, 222-F and 242-F gas boilers.
At a glance
- Also known as 2320900
£59.39
£49.49 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 Viessmann ignition transformer BW12126-00 is a gas boiler ignition component used to generate the high-voltage spark that lights the burner. It is listed for the Viessmann Vitodens 200-W, Vitodens 222-F and Vitodens 242-F appliance families. The part carries the manufacturer reference BW12126-00 and the Viessmann part number 7827957.
Signs this part needs replacing
- The boiler fails to ignite, with no spark at the burner during a call for heat
- Repeated lockouts on start-up that clear after a reset but return
- Audible clicking without burner light-up, indicating spark generation has dropped off
- Visible damage, scorching or arcing at the transformer body or its connections
Before you order
- Confirm the appliance model and serial number against the fit list above
- Check the existing transformer is marked BW12126-00 or carries Viessmann part number 7827957
- Inspect the ignition leads and electrode condition before replacing the transformer
- Isolate the electrical supply to the boiler before carrying out any work
Compliance
| Alternative numbers | 2320900 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 200-W WB2B 19KW SERIAL No. 7248823 | 41-819-14 | 41-819-14 | — | — |
| VIESSMANN VITODENS 200-W WB2B 26KW SERIAL No. 7248824 | 41-819-15 | 41-819-15 | — | — |
| VIESSMANN VITODENS 200-W WB2B 26KW SERIAL No. 7248825 | 47-819-09 | 47-819-09 | — | — |
| VIESSMANN VITODENS 200-W WB2B 30KW SERIAL No. 7248826 | 41-819-16 | 41-819-16 | — | — |
| VIESSMANN VITODENS 200-W WB2B 30KW SERIAL No. 7248827 | 47-819-10 | 47-819-10 | — | — |
| VIESSMANN VITODENS 200-W WB2B 35KW SERIAL No. 7248828 | 41-819-17 | 41-819-17 | — | — |
| VIESSMANN VITODENS 200-W WB2B 35KW SERIAL No. 7248829 | 47-819-11 | 47-819-11 | — | — |
| VIESSMANN VITODENS 200-W WB2B-105 SERIAL No.7374869 | — | — | — | |
| VIESSMANN VITODENS 200-W WB2B-105 SERIAL No.7424194 | — | — | — | |
| VIESSMANN VITODENS 200-W WB2B-19 SERIAL No. 7374863 | — | — | — |
Showing 10 of 29 compatible appliances.
Documents & drawings
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