Lennox Surelight Control Board Wiring Diagram

Lennox Surelight control boards are essential parts of Lennox HVAC systems. The control boards act as the brain of the system, managing and regulating various functions, such as temperature control, fan speed, and safety features. Wiring the control board correctly is crucial to ensure your HVAC system operates efficiently and without errors. This article provides a detailed guide on Lennox Surelight control board wiring diagram, including installation instructions, wiring diagram, and frequently asked questions.

Installation Instructions

The installation process for the Lennox Surelight control board is simple and straightforward. Before installing the control board, ensure that you have all the necessary tools, including wire cutters, wire strippers, and screwdrivers. Here is a step by step guide to install the Lennox Surelight control board:

Step 1: Turn Off Power

Before starting the installation process, turn off the power supply to the HVAC system. Locate the circuit breaker or disconnect switch and turn it off. This will ensure your safety during installation and prevent electrical shocks.

Step 2: Open the Access Panel

Locate the access panel to the HVAC system’s control board. It is usually located on the front or side of the unit. Use a screwdriver to remove the screws and open the panel.

Step 3: Remove the Old Control Board

Carefully remove the old control board by unscrewing and unclipping it. Be sure to remember how the wires are connected before removing them.

Step 4: Install the Lennox Surelight Control Board

Connect the wires from the HVAC system to the corresponding terminals on the Lennox Surelight control board. Refer to the wiring diagram provided with the control board to ensure correct connections. Secure the control board using screws or clips provided.

Step 5: Power On the System

After successfully installing the control board, turn on the power supply to the HVAC system. Turn on the thermostat and wait for the system to start running.

Wiring Diagram

Here is a wiring diagram for Lennox Surelight control board:

Lennox Surelight Control Board Terminal Wire Connection
R Red
C Blue
W1 White
W2 Second stage heat
Y1 Yellow
Y2 Second stage cooling
G Green
O Orange

Frequently Asked Questions

What is Lennox Surelight Control Board?

Lennox Surelight control boards are essential parts of Lennox HVAC systems. The control boards act as the brain of the system, managing and regulating various functions, such as temperature control, fan speed, and safety features.

Can I install the Lennox Surelight control board myself?

If you have basic knowledge of electrical wiring and HVAC systems, you can install the Lennox Surelight control board yourself. However, it is recommended to hire a qualified HVAC technician to perform the installation to ensure proper installation and prevent damage to the system.

What are the benefits of Lennox Surelight control board?

Lennox Surelight control board provides several benefits, including improved system efficiency, advanced diagnostics, and error reporting, and compatibility with Lennox HVAC systems. Additionally, it ensures safe operation of the HVAC system by monitoring and regulating various functions.

How often should I replace my Lennox Surelight control board?

The lifespan of the Lennox Surelight control board depends on several factors, such as usage, maintenance, and environmental factors. In general, it is recommended to replace the control board every ten years to ensure optimal performance and safety.

How much does it cost to replace the Lennox Surelight control board?

The cost of replacing the Lennox Surelight control board varies depending on several factors, such as the model of the control board, installation fees, and labor costs. Typically, the cost of replacing the control board ranges between $200 to $500.

In conclusion, the Lennox Surelight control board is an essential part of Lennox HVAC systems. Wiring the control board correctly is crucial to ensure your HVAC system operates efficiently and without errors. This article provides a detailed guide on Lennox Surelight control board wiring diagram, including installation instructions, wiring diagram, and frequently asked questions.