What It Means
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Lennox Equipment not specified
Lennox Error Code 4002
Equipment not specified:
Causes & actions from Lennox
How it shows
- s30 service notification: 4002
This manual entry does not list further causes or actions.
Applicable models & manual sources
- iComfort S30
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Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
