Worcester Bosch
Worcester Bosch Control Unit Acu-L with Code Plug 8737604616
Worcester Bosch Acu-L control unit with code plug, part 8737604616, for Greenstar 2000 Combi GR2300iW 30 C NG boilers.
At a glance
- Part type: Control unit, supplied with code plug 25136
- Also known as 25136, 8926384
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£208.87
£174.06 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 Worcester Bosch Acu-L control unit is the electronic control board that governs the operating sequence of the boiler, handling burner demand, temperature regulation and safety monitoring. It is supplied with a matching code plug, part 25136, which carries the appliance-specific configuration data the board needs to run correctly. This assembly is used across the Worcester Greenstar 2000 Combi GR2300iW 30 C NG range.
Signs this part needs replacing
- Boiler fails to fire or locks out with a fault code displayed
- No response to heating or hot water demand while power is present
- Intermittent operation, with the boiler cutting out mid-cycle
- Display or indicator LEDs dead or behaving erratically
- Repeated lockouts that clear on reset but return shortly after
Before you order
- Check the appliance GC number and model plate to confirm this control unit matches your boiler.
- Note the previous part number 8737603353 and alternative number 8926384, which may be marked on the existing board.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
- Confirm the code plug supplied matches the appliance variant before fitting.
Mechanical
| Part type | Control unit |
|---|
Compliance
| Manufacturer part number (MPN) | 8737604616 |
|---|---|
| Barcode / EAN | 8737604616 |
| Alternative numbers | 25136, 8737603353, 8926384 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 2000 COMBI GR2300iW 30 C NG | 47-800-28 | 47-800-28 | — | — |
| WORCESTER GREENSTAR GR2300iW 30 C NG COMBI | 47-800-28 | 47-800-28 | — | — |
Documents & drawings
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