Lennox Equipment not specified

Lennox Error Code 444

Equipment not specified:

What It Means

  • HP Reversing Valve Relay Or Solenoid Fault

Causes & actions from Lennox

How it shows
  • iComfort S30 alert: 444

Priority condition: Service Urgent Relay failure. Verify by call for heat pump heating. Check for 24VAC out from O.

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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