Viessmann
Viessmann Cable Tree X8/X9/Ionization 7831620
Viessmann cable tree 7831620 for the X8, X9 and ionization connections on Vitodens 222-F Fs2A and 242-F B2SA boilers.
At a glance
- Also known as 2321996
£73.01
£60.84 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 cable tree X8/X9/ionization (part number 7831620) is a wiring harness used on Vitodens 222-F Fs2A and 242-F B2SA appliances. It carries the connections for the X8 and X9 terminals and the ionization electrode, linking the electrode and plug positions to the boiler control. The assembly is supplied as a Viessmann service part for use where the existing harness or its plugs are damaged.
Signs this part needs replacing
- Repeated flame detection or ionization faults logged by the boiler control
- Intermittent lockouts that clear when the harness plugs are moved or reseated
- Visible heat damage, brittleness or chafing on the leads or insulation
- Corroded, loose or deformed plug terminals at the electrode or control end
- Continuity faults traced along the X8, X9 or ionization circuit
Before you order
- Confirm the appliance model and serial number against the fit list above
- Check the fault is traced to the harness rather than the ionization electrode or control
- Inspect the existing plug layout to confirm the replacement matches the connections in use
- Isolate the electrical supply and follow the manufacturer's instructions before fitting
Compliance
| Alternative numbers | 2321996 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| VIESSMANN VITODENS 222-F FS2A 19KW MODEL NUMBER SERIAL No. 7419987 | 47-819-15 | 47-819-15 | — | — |
| VIESSMANN VITODENS 222-F FS2A 26KW MODEL NUMBER SERIAL No. 7374977 | 47-819-16 | 47-819-16 | — | — |
| VIESSMANN VITODENS 222-F FS2A 35KW MODEL NUMBER SERIAL No. 7374978 | 47-819-17 | 47-819-17 | — | — |
| VIESSMANN VITODENS 242-F B2SA 19KW SERIAL No. 7423015 | 47-819-18 | 47-819-18 | — | — |
| VIESSMANN VITODENS 242-F B2SA 26KW SERIAL No. 7374980 | 47-819-19 | 47-819-19 | — | — |
Documents & drawings
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