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Item #:
56402702
Viessmann 7839747 Flow Switch for Vitodens B2TB/B1HA/B1KA/B2HB/B2HA Series Boilers
Item #:
56402702
AUD 358
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Imported from USA store
QTY:
Order now and get it around Sunday, August 30
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Replacement Flow Switch for various series of Vitodens Residential Gas-Fired Condensing Boilers
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What Stands Out
Precision Control
Ensures optimal functioning of Vitodens boilers by accurately monitoring flow rates, enhancing energy efficiency and system reliability.
Durable Design
Built with high-quality materials to withstand harsh conditions, extending the life of your boiler and reducing maintenance costs.
Easy Installation
Designed for straightforward setup, minimizing downtime and enabling quick integration with existing boiler systems for immediate performance improvement.
Product Details
- Compatible with Vitodens 222-F B2TB 19/35 Series Residential Floor-Standing Gas-Fired Condensing Boilers
- Compatible with Vitodens 100-W B1HA/B1KA 26/35, Vitodens 200-W B2HB 19/26/35 and Vitodens 200-W B2HA 19/28/35 Series Residential Wall-Mounted Gas-Fired Condensing Boilers
- Adjustments, installations, service or maintenance must be completed by a licensed professional heating contractor
- Check with manufacturer before ordering replacement parts to ensure a proper fit
- Provide the 16-digit boiler serial number or the 12-digit ASME/NB serial number when ordering replacement parts
- Replacement Flow Switch for Vitodens 222-F B2TB 19/35 Series Residential Floor-Standing Gas-Fired Condensing Boilers
| Operation Mode | ON-OFF |
| Contact Type | Normally Open |
| Connector Type | Screw |
| Switch Type | Flow Switch |
| Terminal | Screw |
| Circuit Type | 1-way |
| Mounting Type | Panel Mount |
| Number of Positions | 1 |
| Control Method | Touch |
| Connectivity Protocol | X-10 |
| Compatible Devices | Viessmann Vitodens 222-F B2TB 19/35, Vitodens 100-W B1HA/B1KA 26/35, Vitodens 200-W B2HB 19/26/35, Vitodens 200-W B2HA 19/28/35 |
| Color | Black |
| Unit Count | 1.0 Count |
| Number of Items | 1 |
| Material Type | Stainless Steel |
| Contact Material | Stainless Steel |
| International Protection Rating | IP00 |
| Brand Name | Viessmann |
| Model | 7839747 |
| Manufacturer | Viessmann |
| UPC | 653958670674 |
| Part Number | 7839747 |
| Item Type Name | Viessmann 7839747 Flow Switch for Vitodens B2TB/B1HA/B1KA/B2HB/B2HA Series Boilers |
| Included Components | Viessmann 7839747 Flow Switch for Vitodens B2TB/B1HA/B1KA/B2HB/B2HA Series Boilers |
| Brand | Viessmann |
| Material | Stainless Steel |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
-
Homeowners
Ideal for homeowners with Vitodens boilers seeking reliable flow switch functionality for efficient heating systems.
-
HVAC Technicians
Great for HVAC professionals needing a dependable replacement part to maintain or repair Vitodens boiler systems.
-
Plumbing Businesses
Useful for plumbing businesses that service Vitodens boilers, ensuring optimal performance and customer satisfaction.
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Non-Vitodens Users
Not suitable for users with different boiler brands as compatibility issues may arise.
Product Description
Viessmann 7839747 Flow Switch for Vitodens B2TB/B1HA/B1KA/B2HB/B2HA Series Boilers
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the function of the 7839747 Flow Switch in Vitodens B2TBB1HAB1KAB2HBB2HA Series Boilers?
Answer: The 7839747 Flow Switch is a critical component in Vitodens boilers, designed to monitor the flow of water through the heating system. It ensures that the boiler operates only when there is sufficient water flow, preventing overheating and potential damage. This component works by sending signals to the boiler control system. For instance, when operating in a residential setting, the flow switch plays an essential role in maintaining energy efficiency and ensuring system safety by stopping the boiler if the water flow becomes insufficient. -
Question:
How do I know if my 7839747 Flow Switch is malfunctioning?
Answer: Signs of a malfunctioning flow switch include inconsistent heating or an error code displayed on the boiler's interface. If the boiler turns off frequently or fails to start, these could indicate issues with the flow switch. To confirm, users can also check for a lack of water flow or irregular boiler responses. Regular maintenance checks can help identify these problems early, ensuring optimal operation of the heating system, especially in cold weather conditions. -
Question:
Is the 7839747 Flow Switch compatible with other boiler models?
Answer: The 7839747 Flow Switch is specifically designed for the Vitodens B2TBB1HAB1KAB2HBB2HA Series Boilers. While some components may appear similar, each boiler model may have different specifications. Using the correct flow switch is vital for maintaining functionality and safety. For best performance, it's recommended to consult the boiler manual or a professional technician to confirm compatibility if considering upgrades or replacements for different models. -
Question:
What should I do if the flow switch gets stuck?
Answer: If the flow switch becomes stuck, it may affect boiler performance. To address this, consider gently resetting it by turning off the boiler and inspecting the installation. Debris or sediment build-up can often cause it to malfunction. Cleaning the flow switch and ensuring proper flow can restore functionality. In cases where it is still unresponsive, replacing the flow switch is advisable, allowing for seamless operation of the heating system especially when preparing for winter months. -
Question:
Can I install the 7839747 Flow Switch myself?
Answer: Installation of the 7839747 Flow Switch can be undertaken by a knowledgeable DIY enthusiast with plumbing and electrical experience. However, it is advisable to consult the boiler’s manual for specific installation instructions. Proper installation is critical for the safe and effective operation of the boiler. Correct installation ensures the switch effectively monitors water flow and contributes to the safety mechanisms of the boiler system, which is crucial for preventing hazardous situations. -
Question:
Where can I find the specifications for the 7839747 Flow Switch?
Answer: Specifications for the 7839747 Flow Switch are typically found within the product manual provided by Vitodens, as well as detailed product listings on trusted e-commerce platforms. These specifications include details such as pressure rating, dimensions, and operating temperature ranges. Being informed of the specifications can ensure that the right flow switch is acquired, keeping your boiler functioning efficiently within its designated performance parameters. -
Question:
What materials is the 7839747 Flow Switch made from?
Answer: The 7839747 Flow Switch is constructed using durable materials designed to withstand high temperatures and pressures typical in boiler systems. Typically, these include high-quality plastics and metals that ensure longevity and reliability. Understanding the material quality gives insights into the switch's performance expectations and its resilience in demanding environments, ensuring that it can operate effectively over time under normal usage conditions. -
Question:
How does the 7839747 Flow Switch impact energy efficiency?
Answer: The 7839747 Flow Switch is integral to maintaining energy efficiency in Vitodens boilers. By ensuring the boiler only operates when there is sufficient water flow, it minimizes energy waste and contributes to lower utility costs. For instance, in a well-functioning system, proper monitoring leads to optimized heating cycles and fewer instances of energy loss, making this component essential for environmentally-conscious homeowners. -
Question:
What common issues should I watch for regarding the flow switch?
Answer: Common issues to monitor with the 7839747 Flow Switch include leaks, stuck mechanisms, and signs of electrical faults. Regular inspections can detect these concerns early. For example, if you notice inconsistent heating or hear unusual noises from the boiler, these may indicate potential flow switch issues. Early detection can save time and prevent more costly repairs in the long run, ensuring a reliably functioning heating system. -
Question:
Where can I buy 7839747 Flow Switch for Vitodens B2TBB1HAB1KAB2HBB2HA Series Boilers?
Answer: You can purchase the 7839747 Flow Switch for Vitodens B2TBB1HAB1KAB2HBB2HA Series Boilers from Ubuy. They offer a wide range of boiler components, ensuring reliable sources for replacement parts like the flow switch needed to maintain your heating system's performance. Ubuy's platform provides convenient purchasing options, making it easier for you to find and buy essential parts.
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Pros
- High accuracy and reliability
- Durable construction materials
- Easy installation process
- Compatible with multiple Vitodens models
- Improves boiler efficiency
Platform Trust & Buyer Confidence
CJ
Chris
Verified buyer
“Promt delivery. Seems like a good product.”
22 July 2026 · via Trustpilot
SM
Scott
Verified buyer
“It was the best service ever received by any company from my online shopping experience in the last 10yrs”
11 July 2026 · via Trustpilot
TD
Terri
Verified buyer
“so easy to order delivery was way earlier than i expected”
3 July 2026 · via Trustpilot
GC
Gavin
Verified buyer
“Very impressed with the speed at which I received my package from the United States to Australia. Highly recommended.”
21-Jul-26 · via Trustpilot
J
Jeannie
Verified buyer
“Very efficient service. Hassle-free. Excellent product. Have ordered several times.”
17-Jul-26 · via Trustpilot
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Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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AUD 358
Order now and get it around Sunday, August 30
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
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Features & Benefits
- Compatible with Vitodens 222-F B2TB 19/35 Series Floor-Standing Boilers
- Also compatible with Vitodens 100-W and Vitodens 200-W Series Wall-Mounted Boilers
- Ensure proper fit before purchasing by checking with manufacturer and providing serial number
- Professional installation and maintenance required
- Replacement parts should be ordered after checking with the manufacturer
- Serial numbers required for proper fitting
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