Description
Compatible Flow Switch 242459 – Fits Baxi, Main & Potterton (Replaces Obsolete Part)
The Baxi flow switch 242459 helps monitor water flow inside the boiler, so the system can respond correctly during hot water demand. However, if the switch becomes faulty, the boiler may struggle to detect flow properly, which can affect hot water performance. Therefore, replacing it with this brand new compatible part helps restore normal operation, improve reliability, and support smooth everyday boiler use.
Compatible Boilers
This part is compatible with the following models:
100 HE Series
- 100 HE – GC No. 41-075-32
- 100/2 HE – GC No. 41-075-34
HE Plus Series
- 50/2 HE Plus – GC No. 41-077-41
- 80/2 HE Plus – GC No. 41-077-42
- Combi 100 HE Plus – GC No. 47-075-15
- Combi 133 HE Plus – GC No. 47-075-14
- Combi 80 HE Plus – GC No. 47-075-16
- System 100 HE Plus – GC No. 41-075-43
Barcelona Series
- Barcelona – GC No. 41-075-02
- Barcelona System – GC No. 41-075-03
Combi Series
- Combi 130HE – GC No. 47-075-04
HE Series
- 15 HE – GC No. 41-077-90
- 24HE – GC No. 41-077-91
Solo HE Series
- Solo 12 HE – GC No. 41-075-50
- Solo 12 HE A – GC No. 41-075-65
- Solo 15 HE – GC No. 41-075-46
- Solo 15 HE A – GC No. 41-075-66
- Solo 18 HE – GC No. 41-075-51
- Solo 18 HE A – GC No. 41-075-67
- Solo 24 HE – GC No. 41-075-45
- Solo 24 HE A – GC No. 41-075-68
- Solo 30 HE – GC No. 41-075-44
- Solo 30 HE A – GC No. 41-075-69
Solo IE Series
- Solo 12 IE – GC No. 5133389
- Solo 15 IE – GC No. 5113390
- Solo 18 IE – GC No. 5093391
- Solo 24 IE – GC No. 5073392
- Solo 30 IE – GC No. 5053393
Why Choose This Product?
This brand new compatible Baxi flow switch offers a practical way to restore proper water flow detection and reliable boiler performance. In addition, it provides a cost-effective replacement option for a faulty original part, while helping keep your heating system running smoothly.
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. Always use a qualified engineer for safe installation and correct fitment.
Frequently Asked Questions
1. What does the Baxi flow switch 242459 do?
The flow switch helps the boiler detect water movement during operation. As a result, it supports correct hot water demand response and reliable system performance.
2. What can happen if the flow switch fails?
A faulty flow switch can stop the boiler from detecting water flow correctly. Therefore, it may lead to hot water issues or irregular boiler operation.
3. Is this part brand new?
Yes, this listing is for a brand new compatible Baxi flow switch. It offers a practical replacement option for worn or faulty original parts.
4. Is this part compatible with all Baxi boilers?
No, compatibility can vary depending on the model and version of the boiler. So, always check part number 242459 against your existing component before ordering.
5. Who should install this flow switch?
A qualified engineer should install the part to ensure safe and correct fitting.This also helps protect the boiler and supports reliable operation.







Reviews
There are no reviews yet.