Viessmann 7841824 Stepping Motor, Boiler Actuator Motor, Control Valve Drive, Modulating Motor Replacement
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Viessmann 7841824 Stepping Motor, Boiler Actuator Motor, Control Valve Drive, Modulating Motor Replacement
- Manufacturer part number
- 7841824
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Delivery
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Description
Product Overview
The Viessmann 7841824 stepping motor is a boiler spare designed to drive and precisely control internal boiler components for accurate modulation and reliable operation. Ideal for servicing and repairs, it helps restore smooth performance and consistent heating and hot water control. A correct-fit replacement part can reduce faults, improve efficiency, and get your system back to dependable running.
Key Features
- Precision step control – supports accurate boiler modulation for steadier temperatures and efficient operation.
- Designed for Viessmann systems – suitable for compatible Viessmann boilers to help ensure correct fit and dependable performance.
- Replacement actuator motor – ideal for swapping worn or failed motors to help resolve intermittent operation and error codes.
- Reliable drive function – helps maintain consistent movement of controlled components for smoother boiler control.
- Genuine spare part reference – supplied to match Manufacturer Part Number 7841824 for confident identification when ordering.
Use Case / Application
This stepping motor is typically used inside compatible Viessmann boilers as part of the control or actuation mechanism (for example, driving a valve or modulation assembly). Suitable for domestic and light commercial heating system maintenance, it is commonly fitted by heating engineers during boiler servicing, breakdown repairs, or planned replacement of worn control components in utility rooms, kitchens, airing cupboards, plant rooms, and boiler cupboards.
Problem → Solution
Ideal for restoring proper boiler control when a failed or sticking actuator motor causes poor modulation, inconsistent heating or hot water, or recurring fault behaviour.
Product Specifications
Manufacturer – Viessmann
Manufacturer Part Number (MPN) – 7841824
Product Type – Stepping Motor (Boiler Actuator Motor)
Why Buy from BHL
Viessmann is known for engineered heating components built for reliable system performance, and the 7841824 stepping motor is a key replacement part for keeping compatible boilers working correctly. Buy online from BHL for competitive pricing, genuine parts where relevant, and free* and fast UK delivery. BHL is a specialist online merchant trusted by thousands of satisfied customers since 1998, with thousands of 5 star reviews. Orders are delivered with care from UK warehouses so you can get the right part quickly and fit with confidence. *see our terms