Lennox Packaged Unit

Lennox Packaged Unit Error Code 6 Flashes

Packaged Unit: Packaged HVAC (outdoor)

What It Means

  • Pressure Switch closed with CAI OFF

Causes & actions from Lennox

How it shows
  • dsi ignition heartbeat led: 6 Flashes

This manual entry does not list further causes or actions.

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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