Baxi
Baxi Air Vent 1/2" 7733490
Baxi 7733490 1/2" air vent for Aquaheat HD/HWI and HI/HWI appliances, used to release trapped air from the water circuit.
At a glance
- Appliance family: Baxi Aquaheat HD/HWI and HI/HWI
- Also known as 1129396
£31.63
£26.36 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 Baxi 7733490 is a 1/2" air vent used on Baxi Aquaheat HD/HWI and HI/HWI appliances. It releases trapped air from the appliance water circuit so the system can fill and circulate correctly. It is a serviceable component that may need replacing if it weeps or stops venting.
Signs this part needs replacing
- Water weeping or dripping from the vent body or cap
- Air not clearing from the appliance, leaving it noisy or slow to heat
- Repeated need to bleed the same point
- Corrosion or scale visible around the vent
- Vent cap seized or no longer able to be opened and closed
Before you order
- Confirm your appliance model against the fitment list above
- Check the existing vent is 1/2" and matches the thread and position on your appliance
- Isolate and drain the appliance as required before removal
- Check whether any other parts are needed for the same service
Compliance
| Alternative numbers | 1129396 |
|---|
| Make | Model / assembly | Reference | Years | Fitment |
|---|---|---|---|---|
| BAXI AQUAHEAT HD/HWI 12/50 | — | — | — | |
| BAXI AQUAHEAT HD/HWI 12/50 WITH HEAT METER & MERCURIUS | — | — | — | |
| BAXI AQUAHEAT HI/ HWI - 4/50 | — | — | — | |
| BAXI AQUAHEAT HI/HWI - 14/50 | — | — | — |
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.
No technical questions yet for this part.
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