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Baxi Boiler Hydraulic Inlet Valve (12L) + Automatic Air Vent AAV 5132454 5132455 248043
IN STOCK
FROM £52.99
Baxi Boiler Hydraulic Inlet Valve (12L) + Automatic Air Vent AAV 5132454 5132455 248043
Product Overview
The Baxi Hydraulic Inlet Valve (12L) with Automatic Air Vent (AAV) Kit (5132454, 5132455 & 248043) is a hydraulic replacement kit designed for use within selected Baxi heating systems.
The hydraulic inlet assembly controls and manages the water supply entering the boiler system, helping maintain correct hydraulic operation. The automatic air vent (AAV) helps remove trapped air from the heating system, supporting efficient circulation and reducing the risk of air-related issues within the appliance.
Together, these components help maintain correct water flow, system filling, and reliable boiler operation.
ℹ️ Product Condition Options:
This part may be available in New or Refurbished condition. Please check the available options from the dropdown menu.
Technical Insight & Common Failure Symptoms
The hydraulic inlet assembly is part of the boiler's water management system and works with other hydraulic components to control water supply and circulation. The automatic air vent assists by releasing trapped air that can affect system performance.
Over time, hydraulic components may experience wear, scaling, leaks, or internal deterioration.
Typical symptoms linked to a faulty hydraulic inlet valve or automatic air vent include:
- Water leaks from the hydraulic assembly
- Difficulty maintaining correct boiler pressure
- Reduced heating or hot water performance
- Air trapped within the heating system
- Noisy boiler operation caused by air in the system
- Poor circulation or inconsistent boiler performance
Replacing worn hydraulic components may help restore correct water flow, pressure management, and reliable boiler operation.
Compatibility
Manufacturer Part Numbers (MPN):
- 5132454 – Hydraulic Inlet Assembly 12L
- 5132455 – Hydraulic Component Reference
- 248043 – Automatic Air Vent (AAV)
This part is designed for selected models within the Baxi range.
Please strictly verify the manufacturer part numbers 5132454, 5132455 and 248043 against your boiler's technical manual, exploded parts diagram, or existing components before ordering to guarantee correct fitment.
Safety Advice
Boiler hydraulic components involve water pressure, heating system connections, and internal boiler parts. Installation and servicing must be carried out by a Gas Safe registered engineer in accordance with current regulations and manufacturer instructions.
This part fits the following boilers:
Fits Appliance(s)
GC No.
Baxi 105 HE A Instant
47-075-50
Baxi Duo Tec 24 HE
47-075-23
Baxi Duo Tec 28 HE
47-075-25
Baxi Duo Tec 28 HE A (After Serial No.CAC0929 Issue 9)
47-075-36
Baxi Duo Tec 28 HE A (Before Serial No.CAC0929 Issue 9)
47-075-36 BEFORE
Baxi Duo Tec 33 HE
47-075-24
Baxi Duo Tec 33 HE A (After Serial No.BTH1112 Issue 9)
47-075-37
Baxi Duo Tec 33 HE A (Before Serial No.BTH1112 Issue 8)
47-075-37 BEFORE
Baxi Combi 28 HE
47-075-21
Baxi Combi 33 HE
47-075-22
Baxi Platinum Combi 24 HE
47-075-27
Baxi Platinum Combi 28 HE
47-075-28
Baxi Platinum Combi 28 HE A (After Serial No. BNC0932 Issue 7)
47-075-32
Baxi Platinum Combi 28 HE A (Before Serial No. BNC0932 Issue 7)
47-075-32 BEFORE
Baxi Platinum Combi 33 HE
47-075-29
Baxi Platinum Combi 33 HE A (After Serial No. BNE1112 Issue 5)
47-075-33
Baxi Platinum Combi 33 HE A (Before Serial No. BNE1112 Issue 6)
47-075-33 BEFORE
Baxi Platinum Combi 40 HE
47-075-30
Main Combi 25 Eco
47-467-01
Main Combi 30 Eco
47-467-03
Potterton Gold 24 HE Combi
47-590-05
Potterton Gold 28 HE Combi
47-590-06
Potterton Gold 28 HEA Combi (After Serial No BNF0932 & GNK0932)
47-393-19
Potterton Gold 28 HEA Combi (Before Serial No BNF0932 & GNK0932)
47-393-19 BEFORE
Potterton Gold 33 HE A Combi (After Serial No GNL1112)
47-393-20
Potterton Gold 33 HE A Combi (Before Serial No GNL1112)
47-393-20 BEFORE
Potterton Gold 33 HE Combi
47-590-19
Potterton Promax Combi 24 HE Plus
47-393-17
Potterton Promax Combi 24 HE Plus LPG
47-393-24
Potterton Promax Combi 28 HE Plus
47-590-04
Potterton Promax Combi 28 HE Plus A
47-393-22
Potterton Promax Combi 33 HE Plus
47-590-03
Potterton Promax Combi 33 HE Plus A
47-393-23
Potterton Titanium 28
47-393-40
Potterton Titanium 33
47-393-41
Potterton Titanium 28 Combi Erp (Serial No. Ending in AC)
47-393-51
Potterton Titanium 28 Combi Erp (Serial No. Ending in BC & CC)
47-393-51 BC
Potterton Titanium 33 Combi Erp (Serial No. Ending in AC)
47-393-52
Potterton Titanium 33 Combi Erp (Serial No. Ending in BC & CC)
47-393-52 BC
Potterton Titanium 33 Combi Erp (Serial No. Ending in DC)
47-393-52 DC
Delivery
Free next day UK delivery is available on orders over £50.
Orders placed before 3 PM are usually dispatched the same working day.
Delivery times may vary for remote areas, Highlands, islands, and non-mainland UK destinations.
If you need urgent delivery help, please contact our customer service team before placing your order.
All Orders First 30 Days:
You can return or cancel your orders for any reason at any time within 30 days of receipt. After 30 days, we reserve the right to charge a restocking fee or refuse the return.
Parts must be returned in the same condition and packaging as received, or we may deduct a percentage of the cost of the part.
A full refund or exchange will be agreed once the item(s) have been received and inspected to ensure they are unused and in their original packaging where applicable.
If the part is returned as faulty and is found to be working upon inspection, postage costs will be deducted from the refund.
Faulty Items After 30 Days:
All items come with a 1 year HTS warranty from the date of purchase. Warranty means HTS will repair or replace the item.
Refunds:
Our returns team will process your refund after we receive and check your items. Please allow up to 15 days for your refund to be processed.
The refund will be made to the original payment method used to place the order.
Contact Us:
For any queries, email us at returns@heatingtradesupplies.com or call +44 01912633708.
Customer Services
National Boiler Spares Ltd
Tyne View Terrace
Wallsend
Tyne and Wear
NE28 6SG
