What It Means
- ZS Humidity Sensor Error
Lennox Equipment not specified
Lennox Error Code 548
Equipment not specified:
Causes & actions from Lennox
How it shows
- iComfort S30 alert: 548
Priority condition: Service Soon Without humidifiers or dehumidifiers, sensor reads out of range 0% to 100%. This message indicates humidity sensor has malfunctioned.
Applicable models & manual sources
- iComfort S30
ZS Humidity Sensor Error
Disclaimer: This information is for general reference. Code wording and instructions vary by model. Always follow the service manual for your exact unit.
What should you check next?
Continue in ACLogics with guided diagnosis for your equipment and symptoms.
