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Lennox Air conditioner remote control not working

If your Lennox air conditioner remote control is not working, start with the simple checks before replacing parts. Weak or dead remote control batteries are the most common reason an air conditioner is not responding to remote commands, so install fresh batteries first and make sure they are seated correctly. If the Lennox AC still works from the unit’s control panel but not from the remote, or only some remote buttons work, the remote control itself is likely defective and should be replaced. If a known-good remote does not communicate with the unit, the problem may be the main control board, which contains the infrared receiver that picks up the remote’s signal. A failed receiver or control board can make it seem like the AC remote control is not working even when the remote is fine. Enter your Lennox air conditioner model number on RepairClinic.com to find the exact replacement remote control, main control board, or related part that fits your specific unit.

01 - Lennox Air Conditioner Remote Control

First, try replacing the batteries in the remote control. If installing fresh batteries doesn’t solve the problem and you can still operate the air conditioner manually, the remote control might be defective. If you think the remote control is defective, replace it.

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02 - Lennox Air Conditioner Main Control Board

The main control board has an infrared receiver that receives signals from the remote. If the infrared receiver is not working, the remote control will not be able to communicate with the control board. If you suspect the main control board is defective, replace it.

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03 - Weak or Dead Remote Control Batteries

The remote control is powered by batteries which may have become too weak for the control to work. Replace the batteries with new ones to see if that resolves the issue.

04 - Replace remote control

If the unit responds correctly when the control panel buttons are pressed, but does not respond to the remote control, or only certain functions of the remote control, the remote is likely defective and will need to be replaced. Refer to owner's manual for guidance.

Frequently Asked Questions

Why is my Lennox air conditioner remote not working?

Why does my Lennox AC respond to the buttons on the unit but not the remote control?

How do I know if the Lennox air conditioner remote control is bad?

Can a bad main control board cause a Lennox air conditioner not to respond to the remote?

How do I find the right Lennox air conditioner remote control or main control board?

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