Description
Vaillant Ecotec Plus 824 VUW Flow Sensor MPN 178988
This Vaillant Flow Sensor 178988 part is present in 39 different boilers in the Vaillant range including the Vaillant ecoTEC PLUS (2005-2010), ecoTEC PLUS (2005-2010), ecoTEC PLUS (2006-2010), ecoTEC exclusive 838 , ecoTEC PLUS (2005-2005).
Part Fits For:
| Fits Appliance(s) | GC No. |
| Ecotec Exclusive 832 VUW 32/4 2007- 2016 | 47-044-37 |
| Ecotec Exclusive 835 VUW 356/5-7 | 47-044-66 |
| Ecotec Exclusive 838 VUW 386/4 2007-2016 | 47-044-38 |
| Ecotec Exclusive 843 VUW 436/5-7 | 47-044-67 |
| Ecotec Plus 824 VUW 246/3-5 2005-2012 | 47-044-31 |
| Ecotec Plus 824 VUW 246/3-5 R1 2005-2011 | 47-044-31 R1 |
| Ecotec Plus 824 VUW 246/3-5 R3 2011-2012 | 47-044-31 R2 |
| Ecotec Plus 824 VUW 246/5-5 2012-2012 | 47-044-40 |
| Ecotec Plus 824 VUW 246/5-5 R1 2012-2013 | 47-044-40 R1 |
| Ecotec Plus 824 VUW 246/5-5 R2 2013-2015 | 47-044-40 R2 |
| Ecotec Plus 824 VUW 246/5-5 R4 2015-2015 | 47-044-40 R4 |
| Ecotec Plus 825 VUW 196/5-5 R6 2017 Onwards | 47-044-83 R6 (0010021823) |
| Ecotec Plus 825 VUW 256/5-5 R4 2015 Onwards | 47-044-57 |
Ecotec Plus 831 VUW 316/3-5 2005-2013 | 47-044-32 |
| Ecotec Plus 831 VUW 316/3-5 R1 2005-2011 | 47-044-32 R1 |
| Ecotec Plus 831 VUW 316/3-5 R3 2011-2012 | 47-044-32 R3 |
| Ecotec Plus 831 VUW 316/3-5 R5 2013-2013 | 47-044-32 R5 |
| Ecotec Plus 831 VUW 316/5-5 2012-2012 LPG | 47-044-46 |
| Ecotec Plus 831 VUW 316/5-5 2012-2012 NG | 47-044-41 |
| Ecotec Plus 831 VUW 316/5-5 R1 2012-2013 LPG | 47-044-46 R1 |
| Ecotec Plus 831 VUW 316/5-5 R1 2012-2013 NG | 47-044-41 R1 |
| Ecotec Plus 831 VUW 316/5-5 R2 2013-2015 LPG | 47-044-46 R2 |
| Ecotec Plus 831 VUW 316/5-5 R2 2013-2015 NG | 47-044-41 R2 |
| Ecotec Plus 831 VUW 316/5-5 R4 2015-2015 LPG | 47-044-46 R4 |
| Ecotec Plus 831 VUW 316/5-5 R4 2015-2015 NG | 47-044-41 R4 |
| Ecotec Plus 832 VUW 246/5-5 R6 2017 Onwards LPG | 47-044-85 R6 (0010021825) |
| Ecotec Plus 832 VUW 246/5-5 R6 2017 Onwards NG | 47-044-84 R6 (0010021824) |
| Ecotec Plus 832 VUW 326/5-5 R4 2015 Onwards | 47-044-58 |
| Ecotec Plus 835 VUW 306/5-5 R6 2017 Onwards | 47-044-82 R6 (0010021822) |
| Ecotec Plus 835 VUW 356/5-5 R4 2015 Onwards | 47-044-53 |
Ecotec Plus 837 VUW 376/3-5 R1 2006-2011 | 47-044-33 R1 |
| Ecotec Plus 837 VUW 376/3-5 R3 2011-2012 | 47-044-33 R3 |
| Ecotec Plus 837 VUW 376/5-5 2012-2012 | 47-044-42 |
| Ecotec Plus 837 VUW 376/5-5 R1 2012-2013 | 47-044-42 R1 |
| Ecotec Plus 837 VUW 376/5-5 R2 2013-2014 | 47-044-42 R2 |
| Ecotec Plus 837 VUW 376/5-5 R4 2014-2015 | 47-044-42 R4 |
| Ecotec Plus 838 VUW 286/5-5 R6 2017 Onwards | 47-044-86 R6 (0010021826) |
| Ecotec Plus 838 VUW 386/5-5 R4 2015 Onwards | 47-044-60 |
| Ecotec Plus 937 VUI 376/3-5 2006-2012 | 47-044-39 |
| Ecotec Plus 937 VUI 376/5-5 2012-2012 | 47-044-43 |
| Ecotec Plus 937 VUI 376/5-5 R1 2012-2013 | 47-044-43 R1 |
| Ecotec Plus 937 VUI 376/5-5 R2 2013-2014 | 47-044-43 R2 |
| Ecotec Plus 937 VUI 376/5-5 R4 2014-2015 | 47-044-43 R4 |
| Ecotec Plus 938 VUI 286/5-5 R6 2017 Onwards | 47-044-87 R6 (0010021827) |
Ecotec Plus 938 VUI 386/5-5 R4 2015 Onwards | 47-044-61 R4 |
| Ecotec Pro 24 VUW 246/3-3 R1 2006-2008 | 47-044-36 R1 |
| Ecotec Pro 24 VUW 246/3-3 R2 2008-2012 | 47-044-36 R2 |
| Ecotec Pro 24 VUW 246/5-3 2012-2012 | 47-044-44 |
| Ecotec Pro 24 VUW 246/5-3 R1 2012-2013 | 47-044-44 R1 |
| Ecotec Pro 24 VUW 246/5-3 R2 2013-2015 | 47-044-44 R2 |
| Ecotec Pro 24 VUW 246/5-3 R4 (2015-2017) | 47-044-54 |
| Ecotec Pro 24 VUW 246/5-3 R4 2015-2015 | 47-044-44 R4 |
| Ecotec Pro 24 VUW 246/5-3 R6 2017 Onwards | 47-044-88 (0010021836) |
| Ecotec Pro 28 VUW 286/3-3 R1 2005-2008 | 47-044-30 R1 |
| Ecotec Pro 28 VUW 286/3-3 R2 2008-2012 | 47-044-30 R2 |
| Ecotec Pro 28 VUW 286/5-3 2012-2012 LPG | 47-044-47 |
| Ecotec Pro 28 VUW 286/5-3 2012-2012 NG | 47-044-45 |
| Ecotec Pro 28 VUW 286/5-3 R1 2012-2013 LPG | 47-044-47 R1 |
| Ecotec Pro 28 VUW 286/5-3 R1 2012-2013 NG | 47-044-45 R1 |
| Ecotec Pro 28 VUW 286/5-3 R2 2013-2015 LPG | 47-044-47 R2 |
| Ecotec Pro 28 VUW 286/5-3 R2 2013-2015 NG | 47-044-45 R2 |
| Ecotec Pro 28 VUW 286/5-3 R4 2015 – 2017 | 47-044-55 (0010018495) |
| Ecotec Pro 28 VUW 286/5-3 R4 2015 – 2017 LPG | 47-044-56 (0010018496) |
Ecotec Pro 28 VUW 286/5-3 R4 2015-2015 LPG | 47-044-47 R4 |
| Ecotec Pro 28 VUW 286/5-3 R4 2015-2015 NG | 47-044-45 R4 |
| Ecotec Pro 28 VUW 286/5-3 R6 2017 Onwards | 47-044-89 (0010021837) |
| Ecotec Pro 28 VUW 286/5-3 R6 LPG 2017 Onwards | 47-044-90 (0010021838) |
| Ecotec Pro 30 VUW 306/5-3 R4 (2015 Onwards) | 47-044-52 |
Please note: Before placing your order you must check your part matches the Manufacturer Part Number stated above.
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     Prices: Please note all prices are inclusive of VAT.
At Heating and catering parts, we certainly strive to provide the best possible customer experience. Consequently, we understand that sometimes a product may not meet your expectations or requirements. That is why we offer a comprehensive 30-day return policy to ensure your satisfaction. Please read our full Return Policy
We appreciate you buying from our store. If your order is received by 1:00 p.m. EST (Monday–Friday), we will ship the item the same day. You can count on us to deliver quickly and safely. In other words, we take pride in our prompt and trustworthy service and will do everything we can to ensure the safe arrival of your package. Please note that weekends are not included in our next-day delivery guarantee. Delivery for orders placed on Fridays (the next day) is on the following Monday. Select the Saturday delivery option at checkout if you’d like your purchases delivered on a weekend day.
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Frequently Asked Questions
1. Which Vaillant boilers are compatible with the 178988 flow sensor?
The 178988 flow sensor fits multiple Vaillant models, including Ecotec Plus 824, 825, 831, 832, 835, 837, 838, 937, 938, Ecotec Pro 24, 28, 30, and Ecotec Exclusive series. Compatibility may vary by model year, so always check the manufacturer part number against your boiler.
2. What is the purpose of the flow sensor in a Vaillant boiler?
The flow sensor monitors the flow of water through the boiler, ensuring that water circulates correctly. It helps maintain efficient boiler operation and accurate temperature control, preventing damage and improving performance.
3. How can I ensure this is the correct part for my boiler?
Check the manufacturer part number 178988 against your boiler’s specifications. The part number is essential to confirm compatibility because different boiler models and years may use different flow sensors.
4. Are there specific installation requirements for the flow sensor?
The flow sensor should be installed following the boiler manufacturer’s guidelines. It is usually fitted in the water flow path within the boiler and must be securely connected to ensure accurate readings. Improper installation may affect boiler performance.
5. Can the 178988 flow sensor be used with older and newer Vaillant models?
Yes, the 178988 flow sensor fits a broad range of Vaillant boilers from older Ecotec Plus models (2005 onwards) to newer Ecotec Pro and Exclusive series. However, always verify the exact model and year to ensure proper compatibility.








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