Baxi Duo Tec 24,28,33 & 40 HE A Pressure Gauge

The Baxi Duo Tec 40 HE A pressure gauge 5118385 displays the system pressure inside your boiler clearly and accurately. This brand new pressure gauge helps you monitor water pressure, so you can maintain safe and efficient boiler operation. Moreover, it supports quick fault checks and routine maintenance. Because it provides precise readings, it helps prevent pressure-related shutdowns and long-term system stress.

Compatibility :

• Instant & Combi HE: 105 HE A Instant, Combi 24 HE, Combi 28 HE, Combi 33 HE
• Duo Tec HE / HE A: Duo Tec 24 HE, Duo Tec 24 HE A (After BTG0815 Issue 9), Duo Tec 24 HE A (Before BTG0815 Issue 9), Duo Tec 28 HE, Duo Tec 28 HE A (After CAC0929 Issue 9), Duo Tec 28 HE A (Before CAC0929 Issue 9), Duo Tec 33 HE, Duo Tec 33 HE A (After BTH1112 Issue 9), Duo Tec 33 HE A (Before BTH1112 Issue 8), Duo Tec 40 HE, Duo Tec 40 HE A (Issue 8)
• Duo Tec Combi ErP: 24 (AC Issue 3), 24 (BC Issue 2), 24 (CC), 24 (DC), 28 (AC Issue 3), 28 (BC Issue 3), 28 (CC), 28 (DC), 33 (AC Issue 3), 33 (BC Issue 2), 33 (CC), 33 (DC), 40 (AC Issue 3), 40 (BC Issue 2), 40 (CC), 40 (DC)
• HE System: 15 HE System, 18 HE System, 24 HE System (After BTF0932), 24 HE System (Before BTF0932), 28 HE System (After CAB1112), 28 HE System (Before CAB1112), 32 HE System
• Megaflo HE A: 15 HE A, 18 HE A, 24 HE A, 28 HE A, 32 HE A
• System ErP (IN): 15 (IN AC Issue 3), 15 (IN BC), 15 (IN CC), 18 (IN AC Issue 3), 18 (IN BC), 18 (IN CC), 24 (IN AC Issue 3), 24 (IN BC), 24 (IN CC), 28 (IN AC Issue 3), 28 (IN BC), 28 (IN CC), 32 (IN AC Issue 3), 32 (IN BC), 32 (IN CC)
• Platinum Combi: 33 HE, 40 HE, 40 HE A (Issue 4)
• Combi ErP: 24 (CC), 24 (DC), 24 (EC), 24 (IN BC Issue 2), 28 (CC), 28 (DC), 28 (EC), 28 (IN BC Issue 2), 33 (CC), 33 (DC), 33 (EC), 33 (IN BC Issue 2), 40 (CC), 40 (DC), 40 (EC), 40 (IN BC Issue 2)

Important fitting advice

We recommend that all parts are fitted by a fully qualified Gas Safe registered engineer. If you need help confirming the right part, contact us our team has 10+ years of boiler spares knowledge and friendly chat support to help you quickly.

Delivery

At Boiler Spares Hub, we dispatch orders within 1 working day (Monday-Friday). Orders placed outside working days will be dispatched on the next working day. For delivery options available for this product, please add it to your basket or check our delivery options page.

Returns

We accept 30-day returns. Returns must be in an unopened, sealed box. If we find the item has been used or installation was attempted, we may refuse the return.

Frequently Asked Questions (FAQ’s)

1.What is the pressure gauge on a Baxi boiler?
The pressure gauge shows the water pressure inside the sealed heating system. It helps you monitor system health and spot pressure issues early, so you can avoid breakdowns.

2.What type of boiler is a Baxi Duo Tec?
Baxi Duo Tec is a gas combi boiler. Therefore, it provides heating and hot water from one compact unit.

3.How often should a Baxi Duo Tec be serviced?
You should service a Baxi Duo Tec once every year. This routine service supports safe operation and helps reduce repair risks.

4.Can a boiler lose pressure without a leak?
Yes, a boiler can lose pressure without an obvious leak. For example, faulty pressure valves or trapped air escaping from radiators can reduce pressure over time.

5.How do you test a boiler pressure gauge?
First, check the gauge on the front of the boiler. Then, confirm the needle sits in the safe zone, since the green and red sections show low, high, or normal pressure.