Worcester Bosch
Worcester Bosch Control Box ACU 8300 HMI 300 CONTROL_BOX-ACU-8300-WITH-HMI-300
Worcester Bosch Control Box ACU 8300 with HMI 300, part 8737709172, for Greenstar Life GR8300iW boilers and other Worcester models.
At a glance
- Part type: Control Box, Panels & Accessories
- Also known as 1200082
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
£328.60
£273.83 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 Control Box ACU 8300 with HMI 300 is the electronic control assembly used on Worcester Bosch Greenstar Life GR8300iW appliances. It houses the boiler's control electronics and the HMI (human machine interface) display panel, handling the switching, monitoring and user-facing readout that keep the appliance running to its set programme. It is supplied as a complete control box assembly, so the display and control board are replaced together rather than separately.
Signs this part needs replacing
- Blank or unlit HMI display with the appliance otherwise powered
- Boiler failing to respond to heating or hot water demand from the controls
- Repeated or persistent fault codes that clear only briefly after a reset
- Intermittent operation, with the appliance cutting in and out without a clear pattern
- Physical damage, moisture ingress or burning around the control box or display
Before you order
- Confirm the appliance model and serial number against the compatibility list before ordering, as control assemblies vary between Greenstar ranges.
- Check the part number on the existing control box and compare it with 8737709172 and the alternative numbers 8755001797 and 1200082.
- This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.
Mechanical
| Part type | Control Box, Panels & Accessories |
|---|
Compliance
| Manufacturer part number (MPN) | 8737709172 |
|---|---|
| Barcode / EAN | 8737709172 |
| GPC classification | Household Boilers/Furnaces/Tank Water Heaters Replacement Parts/Accessories |
| Alternative numbers | 1200082, 8755001797 |
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 30 C LPG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 30 C NG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 30 R LPG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 30 R NG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 30 S LPG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 30 S NG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 35 C LPG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 35 C NG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 35 R LPG | — | — | — | |
| WORCESTER WORCESTER GREENSTAR LIFE GR8300iW 35 R NG | — | — | — |
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