What It Means
- ZS Parameters resetting from restored power
Lennox Equipment not specified
Lennox Error Code 546
Equipment not specified:
Causes & actions from Lennox
How it shows
- iComfort S30 alert: 546
Priority condition: Service Soon An EEPROM is a memory device that stores and remembers the information even after power has been removed from the device. It saves settings that the user might have selected like to desired heating and cooling temperatures. When power is removed and then comes back on, the zone sensors (or thermostat for zone 1) remembers what the users setting were. Code 546 is given if the zone sensor notices that the EEPROM has an issue right after power is first applied. The system will set itself to energy save mode and continue to operation
Applicable models & manual sources
- iComfort S30
ZS Parameters resetting from restored power
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.
