Lennox Equipment not specified

Lennox Error Code 426

Equipment not specified:

What It Means

  • OD Excessive Inverter Alarms

Causes & actions from Lennox

How it shows
  • iComfort S30 alert: 426

Priority condition: Service Urgent After 10 faults within 60 consecutive minutes, the control will lockout. Inverter will flash codes 12 to 14 and 53. NOTE: These inverter codes do not count towards this lockout condition.

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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