Worcester Bosch
Worcester Bosch Siphon D03-10 8737603844
Condensate siphon D03-10 for Worcester Bosch Greenstar 2000 Combi and Gr2301IW appliances.
At a glance
- Also known as 1038531
£37.51
£31.26 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 SIPHON D03-10 is a condensate siphon supplied by Worcester Bosch under part number 8737603844. It sits in the condensate disposal path of Greenstar 2000 Combi and Gr2301IW appliances, where it holds a water seal and collects condensate before it passes to the drain. The siphon is a serviceable component and can become blocked, scaled or damaged over time.
Signs this part needs replacing
- Water leaking from the siphon body or from its joints
- Condensate pooling beneath the appliance or around the siphon area
- Gurgling or slurping noises from the condensate route
- Heavy sludge or scale build-up inside the siphon that cannot be cleared
- A cracked or distorted siphon housing found during a service
Before you order
- Check the appliance model against the fits list above
- Confirm the siphon currently fitted is marked D03-10
- Isolate the electrical supply before opening the condensate path
- Inspect the rest of the condensate route for blockage while access is available
Compliance
| Alternative numbers | 1038531 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C LPG | 47-800-35 | 47-800-35 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 25 C NG | 47-800-34 | 47-800-34 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C LPG | 47-800-37 | 47-800-37 | — | — |
| WORCESTER GREENSTAR 2000 COMBI GR2301iW 30 C NG | 47-800-36 | 47-800-36 | — | — |
| WORCESTER GREENSTAR GR2301iW 25 C LPG COMBI | — | — | — | |
| WORCESTER GREENSTAR GR2301iW 25 C NG COMBI | — | — | — | |
| WORCESTER GREENSTAR GR2301iW 30 C LPG COMBI | — | — | — | |
| WORCESTER GREENSTAR GR2301iW 30 C NG COMBI | — | — | — |
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.
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