The Vaillant Aqua Flow Sensor 194819 194830 monitors water flow within the boiler, so it can detect hot water demand accurately and respond instantly. However, when the sensor becomes faulty, it may cause issues like no hot water or inconsistent temperature. Therefore, replacing it with this refurbished and fully tested unit helps restore proper detection, improve performance, and ensure reliable hot water operation.

Compatible Boilers

This part is compatible with the following Vaillant models:

Aqua Plus Series

• VUI 362-7 (2002–2005) – GC No. 47-044-29
• VUI 362-7 R3 (2005–2008) – GC No. 47-044-29 (306592)

Turbomax Plus 824E Series

• VUW 242/5 (2000–2001) – GC No. 47-044-04
• VUW 242/2-5 (2001–2002) – GC No. 47-044-04-2001-2002
• VUW 242/2-5 R1 (2002–2003) – GC No. 47-044-04-R1
• VUW 242/2-5 R2 (2003–2004) – GC No. 47-044-04-R2
• VUW 242/2-5 R3 (2004–2008) – GC No. 47-044-04-R3

Turbomax Plus 828E Series

• VUW 282/5 (2000–2001) – GC No. 47-044-09
• VUW 282/2-5 (2001–2002) – GC No. 47-044-09-2001-2002
• VUW 282/2-5 R1 (2002–2003) – GC No. 47-044-09-R1
• VUW 282/2-5 R2 (2003–2004) – GC No. 47-044-09-R2

VUW 282/2-5 R3 (2004–2008) – GC No. 47-044-09-R3

Turbomax Plus 837E Series

• VUW 362/2-5 (2002–2004) – GC No. 47-044-28

VUW 362/2-5 R3 (2004–2008) – GC No. 47-044-28 R3

Turbomax Pro 24E Series

• VUW 242/3 (2000–2001) – GC No. 47-044-10
• VUW 242/2-3 (2001–2002) – GC No. 47-044-10-2001-2002
• VUW 242/2-3 R1 (2002–2003) – GC No. 47-044-10-R1
• VUW 242/2-3 R2 (2003–2004) – GC No. 47-044-10-R2
• VUW 242/2-3 R3 (2004–2008) – GC No. 47-044-10-R3

Turbomax Pro 28E Series

• VUW 282/3 (2000–2001) – GC No. 47-044-11
• VUW 282/2-3 (2001–2002) – GC No. 47-044-11-2001-2002
• VUW 282/2-3 R1 (2002–2003) – GC No. 47-044-11-R1
• VUW 282/2-3 R2 (2003–2004) – GC No. 47-044-11-R2
• VUW 282/2-3 R3 (2004–2008) – GC No. 47-044-11-R3

FAQs

1. Which boilers are compatible with the Vaillant Aqua Flow Sensor 194819 194830?

The sensor fits several Vaillant boilers, including Aqua Plus VUI 362-7 (2002–2008), Turbomax Plus 824E, Turbomax Plus 828E, Turbomax Plus 837E, and Turbomax Pro 24E & 28E models from various production years. Always confirm your boiler’s part number before purchase.

2. What is the function of the Aqua Flow Sensor?

The Aqua Flow Sensor monitors the water flow within the boiler system. It ensures the boiler operates efficiently, detects any irregular flow, and helps maintain consistent heating and hot water performance.

3. How do I confirm that this is the correct sensor for my boiler?

Before purchasing, check the manufacturer part number of your existing sensor against 194819 or 194830. This ensures compatibility with your specific boiler model and production year.

4. Can this sensor be used in multiple Vaillant boiler types?

Yes, the Aqua Flow Sensor 194819 194830 is compatible with a variety of boiler types including Combi, System, and Heat models. Refer to the specific boiler compatibility list provided to ensure correct fit.

5. What should I do if I encounter issues with the sensor after installation?

If the sensor does not function as expected, you can contact the support team for guidance or troubleshooting. All sensors come with a 12-month warranty, which covers defects affecting normal operation.