Lennox ML180 User's Information Manual

Pages 7

Year 2010

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Lennox ML180 Specification

The Lennox ML180 is a high-efficiency gas furnace designed to deliver reliable heating performance with a focus on energy efficiency and cost-effectiveness. This model operates with an AFUE (Annual Fuel Utilization Efficiency) rating of 80%, indicating that it converts 80% of its fuel into usable heat, which helps reduce utility bills. The furnace is equipped with a robust, precision-engineered heat exchanger made from aluminized steel, ensuring durability and optimal heat transfer. Its single-speed blower motor provides consistent airflow, enhancing comfort by maintaining even temperatures throughout the home.

The ML180 incorporates Lennox's Duralok Plus heat exchanger, designed to offer long-lasting reliability and efficient operation. Additionally, the furnace features a SureLight® ignitor, which increases dependability while reducing the need for maintenance. The unit is designed with a compact 33-inch cabinet, allowing for versatile installation options even in spaces with limited room.

This furnace is compatible with both natural gas and propane, providing flexibility in fuel choice. It also includes diagnostic features that enable easy troubleshooting and maintenance, minimizing downtime and service costs. The ML180 is engineered to operate quietly, thanks to its insulated blower compartment, which reduces sound levels during operation.

The Lennox ML180 is designed to work seamlessly with other Lennox products, such as air conditioners and air handlers, as part of an integrated home comfort system. It meets rigorous safety and quality standards, ensuring reliable performance throughout its lifespan. This model is an ideal choice for homeowners seeking a balance of performance, efficiency, and value in a heating solution.

Lennox ML180 F.A.Q.

How do I reset the Lennox ML180 furnace?

To reset the Lennox ML180 furnace, locate the reset button on the furnace control panel. Press and hold the button for about 5 seconds until the system restarts.

What are common error codes for Lennox ML180 and how do I resolve them?

Common error codes include E200 (pressure switch error) and E292 (flame failure). For E200, check for blocked vents or hoses. For E292, ensure the gas supply is on and the ignitor is working.

How often should I replace the air filter in my Lennox ML180?

It's recommended to check the air filter every 1-3 months and replace it when it appears dirty or clogged to maintain efficient furnace operation.

What is the correct way to clean the flame sensor on a Lennox ML180?

Turn off the power to the furnace, remove the flame sensor using a screwdriver, and gently clean it with fine-grit sandpaper or emery cloth to remove any buildup.

How can I improve the efficiency of my Lennox ML180 furnace?

Ensure regular maintenance including filter replacements, annual professional inspections, sealing ducts, and keeping vents unobstructed to improve efficiency.

Why is my Lennox ML180 furnace making unusual noises?

Unusual noises may be caused by loose components, a dirty burner, or an issue with the blower motor. Inspect and tighten any loose parts; if the noise persists, contact a professional.

How do I light the pilot on a Lennox ML180 furnace?

Lennox ML180 typically uses electronic ignition, so it doesn't have a traditional pilot light. If experiencing issues, verify electric connections and consult a technician.

What should I do if my Lennox ML180 is not blowing hot air?

Check the thermostat settings, ensure the furnace is receiving power, and inspect the air filter. If the issue persists, the blower motor or heat exchanger may need attention.

How do I troubleshoot a Lennox ML180 that frequently cycles on and off?

Frequent cycling can be due to a clogged air filter, thermostat issues, or an oversized furnace. Check and replace the air filter, and verify the thermostat settings.

What maintenance tasks should I regularly perform on my Lennox ML180 furnace?

Regular tasks include checking and replacing filters, inspecting and cleaning the blower assembly, checking the flue for obstructions, and scheduling annual professional inspections.