Viessmann
Viessmann Coding Plug 20750103
Viessmann coding plug 20750103, a component for the Vitodens 343-F Ws4A boiler, sold under SKU 7825181.
At a glance
- Also known as 2321966
£24.49
£20.41 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 coding plug 20750103 is a replacement coding plug for Viessmann heating appliances. It is supplied as part number 20750103 and is listed under SKU 7825181. Coding plugs identify the appliance configuration to the control electronics, so the correct plug must be fitted for the boiler to operate as designed.
Signs this part needs replacing
- The boiler reports a coding error or fails to start after a control board or coding-related component has been changed.
- The appliance does not recognise its configuration or operates with settings that do not match the installed system.
- The coding plug is visibly damaged, loose or has lost its connection in the coding socket.
- The control board is replaced and the new board needs the correct coding to match the appliance.
- The appliance shows a fault code linked to incorrect or missing coding when no other fault is found.
Before you order
- Confirm the boiler is a Viessmann Vitodens 343-F Ws4A and that the serial number matches 7288384 on the appliance data plate.
- Check the coding plug currently fitted or the coding details recorded for the appliance against the part number 20750103 before ordering.
- Confirm whether the plug is being fitted as a replacement or as part of a control board change, as the required coding may differ.
Compliance
| Alternative numbers | 2321966 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 343-F WS4A SERIAL No. 7288384 | 47-819-08 | 47-819-08 | — | — |
Documents & drawings
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