RESIDEO B120-A Slant Fin Water Heater Board 842-609-000

( Brand: Resideo ), ( Manufacturer Part Number: B120-A ), ( Compatible Brand: For Slant/fin ), ( Type: Hydronic Control ), ( Unit Type: Unit ), ( Power Source: Corded Electric ), ( Voltage: 24 V ), ( Compatible Product: Packaged/rooftop Air Conditioner Unit )

Review RESIDEO Slant fin Water Heater Main Board 842609000

Resideo B120-A Slant/Fin Water Heater Control Board (842-609-000, 842609000)

The Resideo B120-A Slant/Fin Water Heater Control Board, model number 842-609-000 and 842609000, is a sophisticated and reliable device designed to regulate the performance and safety of your water heater. This control board is a crucial component that ensures optimal operation, energy efficiency, and, most importantly, your family's safety.

Crafted by the renowned manufacturer Resideo, this control board boasts a durable and corrosion-resistant design, ensuring long-lasting performance even in challenging water conditions. The B120-A model is specifically designed for Slant/Fin water heaters, offering a perfect fit and seamless integration.

The water heater control board features an advanced microprocessor that enables precise temperature control, ensuring consistent hot water delivery and preventing overheating. It also includes built-in safety mechanisms such as a high-limit thermostat, a temperature and pressure relief valve (T&P) port, and a drain valve for easy maintenance.

The Resideo B120-A Slant/Fin Water Heater Control Board is easy to install, thanks to its clear and intuitive wiring diagram. It also offers easy troubleshooting with diagnostic lights that indicate any potential issues. With its sleek and compact design, the control board fits neatly into your water heater, minimizing the risk of damage and maximizing space efficiency.

In summary, the Resideo B120-A Slant/Fin Water Heater Control Board is a high-performance and reliable solution for regulating your water heater's operation. Its durability, precision, and built-in safety features make it an excellent choice for maintaining a steady supply of hot water while ensuring your family's safety.

The Resideo B120-A SlantFin Water Heater Control Board 842-609-000 (842609000) is a popular choice for water heater control solutions. Here are some pros and cons to help you make an informed decision:

1. Compatibility: This control board is compatible with a wide range of water heaters, making it a versatile option for many households.

2. Reliability: SlantFin is a well-known brand in the water heater industry, and their products are known for their durability and reliability.

3. Easy Installation: Many users have reported that this control board is easy to install, even for those without extensive electrical experience.

4. Temperature and Energy Saving Features: The control board offers adjustable temperature settings and a vacation mode to help save energy when you're away.

1. Limited Customer Support: Some users have reported difficulty in getting help from customer service when issues arise.

2. Potential Compatibility Issues: While the board is compatible with many water heaters, some users have reported issues with specific models. It's essential to ensure compatibility before purchasing.

3. Price: Compared to some other control boards on the market, the Resideo B120-A can be more expensive.

In conclusion, the Resideo B120-A SlantFin Water Heater Control Board 842-609-000 (842609000) is a reliable and feature-rich option for controlling your water heater. However, its price and potential compatibility issues should be considered. If you're comfortable with the price and confident in its compatibility with your water heater, it could be a great choice. If not, you might want to explore other options in the market. It's always a good idea to research and compare multiple products before making a purchase.

Details:

Comes with whats seen in the photo, no more, less. This is in good condition and fully functional. That is the whole reason my used parts cost less than new.

part #: b120 prices

• $34.99-$119.00

specifications hvaapa:

• brand: Resideo
• mpn: B120-a
• compatible brand: For Slant/fin
• type: Hydronic Control
• unit type: Unit
• power source: Corded Electric
• voltage: 24 V
• compatible product: Packaged/rooftop Air Conditioner Unit

offer hvaapa:

• sold: 0
• availability: In Stock
• started: December 3, 2025
• options: Ship-to-home
• quantity: 1

returns hvaapa:

• policy: No Returns

shipping hvaapa:

• type: Calculated
• carrier: USPS
• service: USPS Ground Advantage
• class: Standard
• cost: $0.00
• transit: 5-10 Days

payments hvaapa:

• credit card: Discover
• wallet: Paypal
• other

general hvaapa:

• HVAC Refrigeration > HVAC Refrigeration: Parts Accessories > HVAC Refrigeration: Controls Circuit Boards
• condition: Used

seller hvaapa:

• # reviews: 3192
• city: Lindenhurst, New York
• rating: 97.7%

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