Description

Baxi 720788201 Hall Sensor – Replacement for Combi Boilers

The Baxi Hall Sensor 720788201 helps your boiler detect hot water flow correctly, so the appliance can respond properly when there is demand at an outlet. If the sensor becomes faulty, the boiler may struggle to recognise flow accurately, which can affect normal hot water operation. Therefore, replacing it with the correct brand new part helps restore reliable performance and supports smooth everyday use.

Compatible Boilers

Baxi 600 Combi:

• 624 – GC No. 47-077-28
• 630 – GC No. 47-077-29
• 636 – GC No. 47-077-30

Baxi 800 Combi:

• 825 – GC No. 47-077-38
• 830 – GC No. 47-077-39
• 836 – GC No. 47-077-40

Combi:

• 24 – GC No. 47-075-67
• 28 – GC No. 47-075-68
• 40 – GC No. 47-075-70

Duo Tec 2 GA Range:

• 24 – GC No. 47-075-54
• 28 – GC No. 47-075-55
• 33 – GC No. 47-075-56
• 40 – GC No. 47-075-57

Ecoblue Advance Combi:

• 24 – GC No. 47-075-87
• 28 – GC No. 47-075-88
• 33 – GC No. 47-075-89
• 40 – GC No. 47-075-90

Advance Combi ERP:

• 24 – GC No. 47-077-14
• 28 – GC No. 47-077-15
• 33 – GC No. 47-077-16

40 – GC No. 47-077-17

Platinum 2 Combi GA:

• 28 – GC No. 47-075-61
• 33 – GC No. 47-075-62
• 40 – GC No. 47-075-63

Why Choose This Product?

This brand new baxi hall sensor offers a simple way to restore correct hot water flow detection and dependable boiler operation. In addition, it is suitable for a wide range of Baxi combi models, which makes it a practical replacement when you confirm the part number first.

Delivery and Return

Order before 1 PM for same-day dispatch, with standard and next-day delivery options available. Returns are accepted within 30 days if the part is unused and in its original packaging. However, always use a Gas Safe registered engineer for installation and safe boiler operation.

Frequently Asked Questions

1. What does this hall sensor do?
This part helps the boiler recognise hot water flow, so the appliance can trigger hot water production correctly. If the sensor fails, normal hot water response may be affected.

2. Is this part brand new?
Yes, this listing is for a brand new Baxi Hall Sensor with part number 720788201.

3. Which boilers can this part fit?
It fits selected Baxi combi ranges including 600, Assure, 800, Duo-tec 2, EcoBlue Advance, Platinum 2, and Promax Ultra models. Always check your boiler model and part number before ordering.

4. Can a faulty hall sensor affect hot water performance?
Yes, because the sensor helps detect water flow demand. When it fails, the boiler may not respond properly to hot water use.

5. Who should install this part?
A Gas Safe registered engineer should install the part to ensure correct fitting and safe boiler operation. This also helps protect the appliance and supports proper servicing standards.