Viessmann
Viessmann Water Pressure Switch 7820384
Water pressure switch for Viessmann Vitodens 200 WB2 and WB2A boilers, part number 7820384.
At a glance
- Appliance family: Vitodens 200 WB2 and WB2A
- Also known as 2320258
£88.93
£74.11 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 7820384 is a water pressure switch used on Vitodens 200 WB2 and WB2A appliances. It monitors water pressure within the boiler circuit and signals the control to permit or interrupt operation. The switch is supplied as a single component for like-for-like replacement on the listed models.
Signs this part needs replacing
- The boiler locks out on a low water pressure fault despite the system holding pressure.
- The boiler fails to fire or fires intermittently when there is a demand for heat.
- The pressure gauge reads a normal level but the appliance still reports a pressure fault.
- The boiler shuts down mid-cycle and requires a reset to run again.
Before you order
- Confirm the appliance model against the fit list, for example Vitodens 200 WB2 or WB2A.
- Check the appliance serial number against the numbers shown in the fit list.
- Verify the fault is traced to the water pressure switch before ordering, as similar symptoms can come from other components in the pressure circuit.
Compliance
| Alternative numbers | 2320258 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 200 WB2 6-24 SERIAL No. 7167064 | — | — | — | |
| VIESSMANN VITODENS 200 WB2 6-24C SERIAL No. 7167063 | — | — | — | |
| VIESSMANN VITODENS 200 WB2 8-32 SERIAL No. 7167065 | — | — | — | |
| VIESSMANN VITODENS 200 WB2A 6-24 SERIAL No. 7170318 | — | — | — | |
| VIESSMANN VITODENS 200 WB2A 6-24C SERIAL No. 7170317 | — | — | — | |
| VIESSMANN VITODENS 200 WB2A 8-32 SERIAL No. 7170319 | — | — | — |
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.
No technical questions yet for this part.
Not sure which part?
Search by part number, product name or brand — our technical team confirms fitment before anything is dispatched.