Vaillant 0020211945 Flow Sensor | Genuine Replacement Spare Part
- SKU
- EDDVAILLANTSPARES91
Our Expert's Opinion
"A precise, high reliability measurement component designed to accurately detect water flow for consistent and efficient boiler operation."Vaillant 0020211945 Flow Sensor
The Vaillant 0020211945 Flow Sensor is a genuine detection device engineered to monitor the movement of water through the boiler system, ensuring that the unit activates, modulates, and responds correctly to demand. Built with high-quality internal components, this sensor accurately measures flow rate and transmits real-time data to the boiler’s control electronics, enabling smooth transitions between heating modes and stable hot water delivery. Over time, limescale buildup, debris, or mechanical wear can affect the precision of a flow sensor, leading to issues such as inconsistent hot water, failure to ignite, or delayed system response. Installing an authentic Vaillant replacement restores accurate flow detection, maintains optimal boiler efficiency, and helps prevent nuisance faults or lockouts. Designed for durability and seamless integration, this component is essential for reliable day-to-day performance in modern Vaillant heating systems.
Vaillant provide a 1 year warranty on all genuine spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
This is a genuine Vaillant spare part supplied directly from the manufacturer. We ensure full compatibility, reliable performance and the highest quality standards.
| MPN | 20211945 |
|---|---|
| Product Code | EDDVAILLANTSPARES91 |
| Compatible With: Product Code (SKU) | ecoFIT Pure 825/830/835; ecoFIT Sustain 825/830/835 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Vaillant |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
Vaillant 0020211945 Flow Sensor
The Vaillant 0020211945 Flow Sensor is a genuine detection device engineered to monitor the movement of water through the boiler system, ensuring that the unit activates, modulates, and responds correctly to demand. Built with high-quality internal components, this sensor accurately measures flow rate and transmits real-time data to the boiler’s control electronics, enabling smooth transitions between heating modes and stable hot water delivery. Over time, limescale buildup, debris, or mechanical wear can affect the precision of a flow sensor, leading to issues such as inconsistent hot water, failure to ignite, or delayed system response. Installing an authentic Vaillant replacement restores accurate flow detection, maintains optimal boiler efficiency, and helps prevent nuisance faults or lockouts. Designed for durability and seamless integration, this component is essential for reliable day-to-day performance in modern Vaillant heating systems.
Vaillant provide a 1 year warranty on all genuine spare parts. Electrical Deals Direct now sells a wide range of spare parts. If you cannot see the item you require on our website, please call 01934 253600 or email [email protected] for more information.
This is a genuine Vaillant spare part supplied directly from the manufacturer. We ensure full compatibility, reliable performance and the highest quality standards.
| MPN | 20211945 |
|---|---|
| Product Code | EDDVAILLANTSPARES91 |
| Compatible With: Product Code (SKU) | ecoFIT Pure 825/830/835; ecoFIT Sustain 825/830/835 |
| Part Origin | Genuine |
| Part or Accessory? | Part |
| Brand | Vaillant |
Delivery Information -
Standard delivery for all orders over £150 ex-VAT are free of charge.
If we can speed this up, we will, but you can also select Express Delivery when you check out and get your purchase more quickly (usually the next working day, subject to a 1pm cut-off): there is an extra charge for this ranging from £5 to £29.99 depending on the products you are buying.
We partner with several of the best UK carriers (such as TNT, Royal Mail, DPD etc) depending on the type of product and the warehouse it is coming from, and also with some pallet companies for larger items. All of these operate during normal Monday – Friday working hours, and we expect all deliveries to arrive in 5 days. For more details checkout this page.
Gledhill Cylinders – Delivery Charge -
For all Gledhill Cylinders, a flat delivery charge of £33.00 (ex-VAT) applies, regardless of order value or delivery method. This will be added automatically at checkout.
Returns Information -
Having to return a product because it doesn’t fit, or is not what you wanted, is really annoying! To try and make sure this isn’t necessary we have lots of helpful advice on our site, and you should feel free to call our experts on the number above to check if you are in any doubt at all – we’re always happy to help.
But if you do, don’t worry, just contact us and we’ll get it sorted (note that for trade customers there may be a restocking fee). If you need it, we can usually arrange the carrier to pick it up.
For full details of our policy, check out the small print here.
- Price:
- Actual Price:
Are you sure you would like to remove this item from the shopping cart?
This item is a part of the approved quote. Removing it will remove all quote items from the cart.