Lennox Equipment not specified

Lennox Equipment not specified Error Code 500

Equipment not specified:

What It Means

  • PA Differential Pressure Sensor Fault

Causes & actions from Lennox

How it shows
  • iComfort S30 alert: 500

Priority condition: Service Soon • Pressure sensor reports a fault for more than 5 minutes, or does not respond for more than 5 minutes. • Device will not perform any pressure reading calculations until fault is recovered. Remaining filter life display will indicate “-“ while fault exists.

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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