Lennox Equipment not specified

Lennox Error Code 505

Equipment not specified:

What It Means

  • PA Model Selection Changed

Causes & actions from Lennox

How it shows
  • iComfort S30 alert: 505

Priority condition: Service Soon Model Selection jumper has changed positions.

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.

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