Viessmann
Viessmann Pressure Switch 7824453
Viessmann pressure switch 7824453 for Vitodens 100 and WB1A gas boilers built from 23.03.2005.
At a glance
- Also known as 2320058, N1818
£122.00
£101.67 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
This is a Viessmann pressure switch, part number 7824453, used on Vitodens 100 and Vitodens WB1A gas boilers. It monitors air pressure at the fan and proves that the fan is running before the boiler is allowed to fire. The catalogue listing gives switching pressures of 220/150 Pa for the WB1A range.
Signs this part needs replacing
- Boiler locks out or fails to ignite while the fan runs normally
- Repeated lockouts that clear on reset and return on the next demand
- Ignition sequence aborts before the gas valve opens
- Fault code relating to air pressure or fan proving appears on the display
- Intermittent operation that worsens in cold weather or with a dirty fan
Before you order
- Confirm the appliance model and serial number against the fitment list above
- Check whether the boiler falls before or after the dated fitment references
- Read the part number stamped on the existing switch and match it to 7824453
- Inspect the fan, venturi and sensing tubes first, as a blocked or split tube mimics a failed switch
Compliance
| Alternative numbers | 2320058, N1818 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 100 SYSTEM 24KW | — | — | — | |
| VIESSMANN VITODENS 100 SYSTEM BOILER 24KW SERIAL No. 7179918 | — | — | — | |
| VIESSMANN VITODENS 100-W WB1A 24 SERIAL No. 7246174 | — | — | — | |
| VIESSMANN VITODENS 100-W WB1A 30 SERIAL No. 7246175 | — | — | — | |
| VIESSMANN VITODENS WB1A COMBI 24KW | — | — | — | |
| VIESSMANN VITODENS WB1A COMBI 24KW SERIAL No. 7179917 | — | — | — | |
| VIESSMANN VITODENS WB1A COMBI 30KW | — | — | — | |
| VIESSMANN VITODENS WB1A COMBI 30KW SERIAL No. 7179916 | 47-819-05 | 47-819-05 | — | — |
| VIESSMANN VITODENS WB1A COMBI C24KW (7246794) | — | — | — | |
| VIESSMANN VITODENS WB1A COMBI C24KW (7247428) | — | — | — |
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Documents & drawings
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