Lennox Equipment not specified

Lennox Equipment not specified Error Code 30

Equipment not specified:

What It Means

  • Low Temperature Protection

Causes & actions from Lennox

How it shows
  • iComfort S30 alert: 30

Priority condition: Service Urgent The thermostat will not allow any cooling operation to begin until it senses a temperature higher than 40ºF. • Cooling operation is not allowed. • Check to ensure that cooling equipment is not stuck ON. • Check accuracy of the thermostat temperature sensor. • Select heating system mode to heat the indoor space to above 40ºF.

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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