Lennox Split & Multi-Split

Lennox Error Code Slow Flash / Off / ON

Split & Multi-Split: Mini-split unit (outdoor)

What It Means

  • Stand-by

Causes & actions from Lennox

How it shows
  • corp1816 single zone led 018 030: Slow Flash / Off / ON

Stand-by (Main Control Blue or Yellow LED: Slow Flash; IPM Control Red LED: Off, Green LED: ON)

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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