What It Means
- OD Unit Low Ambient Operational Lockout
Lennox Equipment not specified
Lennox Equipment not specified Error Code 601
Equipment not specified:
Causes & actions from Lennox
How it shows
- iComfort S30 alert: 601
Priority condition: Information Only-Dealer • Outdoor unit has been cycled off on low temperature protection. • Outdoor unit will not operate when the outdoor ambient is at or below 4°F (-15.6°C). • If the unit is satisfying a demand (running) and the outdoor ambient drops below 4°F (-15.6°C), the unit will continue to operate until the demand has been satisfied or the outdoor ambient drops to 15°F (-9.4°C) which will result in the unit being locked out (shut down).
Applicable models & manual sources
- iComfort S30
OD Unit Low Ambient Operational Lockout
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.
