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Lennox ductless error codes

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Lennox ductless error codes

If you own a Lennox ductless air conditioning system, you may encounter error codes that indicate a problem with your unit. These error codes help you troubleshoot the issue and determine whether you need to call a professional for repairs. Here are some common Lennox ductless error codes and what they mean:
 
E0 – This code indicates a communication error between the indoor and outdoor units. Check the wiring and connections between the two units.
 
E1 – This code indicates a problem with the indoor unit’s temperature sensor. It may need to be replaced.
 
E2 – This code indicates a problem with the outdoor unit’s temperature sensor. It may need to be replaced.
 
E3 – This code indicates a problem with the indoor unit’s drain pump. Check the drain line and pump for clogs or damage.
 
E4 – This code indicates a problem with the outdoor unit’s high-pressure switch. It may need to be replaced.
 
If you cannot resolve the issue independently, it is best to call a certified Lennox technician to diagnose and repair your system.