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Lennox 59W47 Control Board Replacement Kit

Special Price $1,358.48 Regular Price $1,507.91
In stock
The Lennox 59W47 Control Board Replacement Kit (around 2.48 lbs) is a brain center replacement for Lennox residential HVAC systems (compatibility with other brands might exist, but verification is necessary). This kit includes the control board itself, measuring 10.5 x 17 x 3 Inches, and is compatible with both 120V and 240V AC power supplies and 50/60Hz frequency. The control board acts as the central nervous system of your HVAC unit, receiving signals from thermostats and sensors. It then interprets this information and sends commands to various components, regulating functions like heating, cooling, and airflow. A functional control board ensures efficient operation of your HVAC system, potentially minimizing energy consumption and maximizing comfort. Replacing a malfunctioning control board with a genuine Lennox equivalent restores proper communication and operation within your HVAC system. This ensures your heating and cooling system functions as intended, keeping your home comfortable.


  • Voltage: 120V or 240V AC
  • Measure: Unit
  • Weight: 2.48lbs
  • Length: 10.5 Inch
  • Width: 17 Inch
  • Height: 3 Inch
  • Frequency: 50/60Hz
Manufacturer Name: Lennox
Product Number: 59W47
OEM Part Number: 59W47
Product Description: 

The Lennox 59W47 Control Board Replacement Kit is an essential component in HVAC systems, designed to ensure the proper functioning and control of various heating and cooling functions within a residential or commercial environment. This replacement kit is engineered to replace existing control boards that might have become faulty or outdated, allowing for improved system performance and enhanced functionality. It provides advanced control capabilities for your HVAC system. It may include features such as precise temperature regulation, programmable settings, and diagnostics to help optimize system performance and energy efficiency. Control boards are critical to the proper operation of HVAC systems. A faulty or outdated control board can lead to improper functioning, reduced efficiency, and increased energy consumption. The replacement kit ensures reliable operation and can extend the lifespan of the entire system. Many modern control board replacement kits, including the Lennox 59W47, offer diagnostic features that allow technicians to identify potential issues within the system. This helps streamline troubleshooting and reduces downtime. Hiring a professional HVAC technician to install the replacement kit is recommended. This ensures that the wiring is correct and the system operates safely and effectively.

Here are some of the features of the Lennox 59W47 Control Board Replacement Kit:

  • Includes all necessary components for a complete replacement
  • Designed to be a direct replacement for the original control board
  • Includes clear instructions and diagrams
  • Made with high-quality materials

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Customer Questions
How to install an expansion valve for refrigeration?

Thermostatic expansion valves are an integral part of your refrigeration unit. They are responsible for ensuring the right dosage of refrigerant is entering the cooling coil to ensure maximum efficiency in the air conditioning of the system.    These special expansion valves come with a temperature sensor that is mounted at the end of the evaporator coil. They incorporate signals from this sensor to maintain the required temperature of the HVAC system. The thermostatic expansion valve works like a precision device that can regulate the measurements of the liquid refrigerant that flows into the evaporator of your system. This regulation in the flow of the refrigerant is essential to prevent the reverse flow of the refrigerant into the compressor of your system.    Through this mechanism, the thermostatic expansion valve successfully separates the high and low pressure sides of the refrigeration/air conditioning system. The liquid refrigerant enters the expansion ...

Can I replace the control board myself?

While some DIY enthusiasts might be capable of replacing a control board, it's recommended to have a qualified HVAC technician handle the replacement.

Can I still use my existing thermostat with the new control board from the kit?

Depending on the compatibility of your existing thermostat and the features of the new control board, you might be able to use your current thermostat. Verify compatibility or consider upgrading to a compatible thermostat if needed.

Are Lennox Control Board Replacement Kits universal or device-specific?

Control Board Replacement Kits are typically device-specific due to differences in sizes, connectors, and compatibility. 

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