What It Means
- ZONE SETPOINT ERROR
Lennox Unit controller
Lennox Error Code 94
Unit controller
Causes & actions from Lennox
How it shows
- M4 alarm code: 94
Ensure that the heating and cooling set points honor the auto-changeover deadband.
Applicable models & manual sources
- MODEL L - M4 UNIT CONTROLLER
ZONE SETPOINT ERROR
MODEL L - M4 UNIT CONTROLLER, M4 Unit Controller
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.
