The Vaillant 194819 Brass Aqua Sensor is a genuine Vaillant replacement flow sensor for TURBOmax combi boilers. It sits in the boiler’s water pipework and detects when water starts flowing, sending a signal to the boiler’s control board so the burner can safely ignite.
It also works as a safety device, making sure the burner cannot fire when the system is dry or low on water. A faulty aqua sensor can cause no hot water when a tap is opened, hot water that cuts in and out, or the boiler failing to fire.
Key Features
- Genuine Vaillant part – Part No. 194819
- Solid brass housing with built-in sensor and electrical plug
- Supplied with fitting clips, O-rings, washers and filter
- Safety device – prevents the burner firing without water flow
- 1 year manufacturer guarantee
Compatible Boilers
- Vaillant TURBOmax Plus 824 E
- Vaillant TURBOmax Plus 828 E
- Vaillant TURBOmax VUW 242/2-3 (R1, R2, R3)
Please check your boiler model or match the part number before ordering. If you are unsure, contact us and we will confirm the right part for you.
Specifications
| Brand | Vaillant |
| Part Number | 194819 |
| Type | Aqua Sensor / DHW Flow Sensor |
| Material | Brass housing |
| Included | Aqua sensor, clips, O-rings, washers, filter |
| Condition | New – Genuine Vaillant |
| Guarantee | 1 year manufacturer guarantee |
Installation
This part must be fitted by a Gas Safe registered engineer.
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