Lennox G41UF Installation Instructions

Lennox G41UF manual cover
Pages 35
Year 2003
Language(s)
English en

Lennox G41UF Specification

The Lennox G41UF is a high-efficiency gas furnace designed to provide reliable and efficient heating for residential applications. This model operates with an Annual Fuel Utilization Efficiency (AFUE) rating of up to 80%, ensuring effective energy use and cost savings. The G41UF features a compact design, allowing for flexible installation in various spaces, including attics, basements, and closets. Its single-stage operation and robust heat exchanger technology deliver consistent temperature control and comfort.

The furnace is equipped with a reliable ignition system, eliminating the need for a pilot light, which enhances safety and reduces energy consumption. The G41UF incorporates Lennox's Duralok Plus heat exchanger, constructed from patented ArmorTuf steel for superior durability and resistance to corrosion. This design ensures long-term reliability and efficient heat transfer. Its blower motor operates quietly, contributing to the overall comfort of the living environment.

The unit supports versatile venting options, including both direct and non-direct venting, providing installation flexibility and accommodating different home setups. It is compatible with a variety of air filtration systems, which can help improve indoor air quality. The Lennox G41UF is designed to integrate seamlessly with Lennox's line of thermostats and other HVAC components, offering enhanced control and connectivity.

Overall, the Lennox G41UF gas furnace is engineered to deliver dependable performance, energy efficiency, and comfort, making it a suitable choice for homeowners seeking a cost-effective heating solution. Its durable construction, ease of installation, and compatibility with advanced control systems underscore its value as a versatile and reliable heating unit.

Lennox G41UF F.A.Q.

How do I reset the Lennox G41UF furnace?

To reset the Lennox G41UF furnace, turn off the power using the switch on or near the furnace. Wait a few minutes and then turn the power back on. This can help clear any minor errors or faults.

What should I do if my Lennox G41UF furnace is not heating?

Check the thermostat settings to ensure it is set to 'heat' and the temperature is set above the current room temperature. Also, inspect the air filter and replace it if it is dirty.

How often should I replace the air filter in my Lennox G41UF furnace?

It is recommended to check the air filter every month and replace it every 3 months, or more often if it appears dirty.

Why is my Lennox G41UF furnace making a banging noise?

A banging noise may be caused by a delayed ignition or ductwork expanding and contracting. Inspect the furnace and ductwork, and consult a professional if necessary.

What maintenance tasks should I perform annually on my Lennox G41UF furnace?

Annual maintenance should include cleaning the blower assembly, inspecting the burner and heat exchanger, checking electrical connections, and ensuring proper airflow.

How can I improve the efficiency of my Lennox G41UF furnace?

Ensure regular maintenance, replace air filters regularly, seal duct leaks, and consider upgrading to a programmable thermostat to improve efficiency.

What does the LED error code on my Lennox G41UF furnace mean?

Refer to the Lennox G41UF furnace manual for a detailed explanation of the LED error codes, as they indicate specific issues that need to be addressed.

How do I clean the flame sensor on my Lennox G41UF furnace?

Turn off the furnace, locate the flame sensor, and gently clean it with a fine sandpaper or steel wool. Reinstall the sensor and restore power to the furnace.

Why does my Lennox G41UF furnace keep cycling on and off?

Frequent cycling could be due to a dirty air filter, thermostat issues, or an improperly sized furnace. Check the air filter and thermostat settings and consult a professional if the problem persists.

What should I check if my Lennox G41UF furnace blower is constantly running?

Ensure the thermostat fan setting is set to 'auto', not 'on'. If the problem continues, the limit switch may be faulty and should be inspected by a professional.