Lennox Equipment not specified

Lennox Error Code 406

Equipment not specified:

What It Means

  • OD Compressor Open Start Circuit

Causes & actions from Lennox

How it shows
  • iComfort S30 alert: 406

Priority condition: Service Urgent The required amount of current is not passing through the START current transformer.

Applicable models & manual sources
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.

See how guided diagnosis works →