Lennox Select Equipment
Lennox Error Code E120
E120 means different things on different Lennox equipment. Choose the equipment you are working on.
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always refer to your unit's service manual.
What does it mean? Select your equipment
- Split & Multi-Split Air conditioner (outdoor), Air handler (indoor), Heat pump (outdoor) There is a delay in the outdoor unit responding to the system.There is a delay in the air-handler responding to the system.Unresponsive device + 1 more readings->
- Ducted Heating Unresponsive device. Communication only.Unresponsive device.->
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
