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Lennox error code e1

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lennox error code e1

If you see an E1 error code on your Lennox HVAC system, it indicates a problem with the communication between your thermostat and your indoor unit. This can be caused by various issues, including faulty wiring, a malfunctioning thermostat, or a problem with the control board in your indoor unit.
 
To troubleshoot this issue, start by checking the wiring between your thermostat and indoor unit to ensure that it’s properly connected and not damaged. If everything looks good there, try resetting your thermostat by turning off the power to your HVAC system for a few minutes, then turning it back on.
 
If those steps don’t solve the problem, you’ll likely need to call in a professional HVAC technician to diagnose and repair the issue. They’ll be able to use specialized tools and equipment to pinpoint the root cause of the problem and get your system back up and running smoothly.