What It Means
- Discharge Air Sensor (DAS) detects high heating temperature
Lennox Zone controller
Lennox Error Code 1010
Zone controller
Causes & actions from Lennox
How it shows
- harmony diagnostic led1234: 1010 (led1: on, led2: off, led3: on, led4: off)
This condition may occur any time the discharge probe senses air warmer than 160ºF for furnace or 135ºF for heat pump. If system is in zone mode when this code is set, the system continues in zone mode, shuts off equipment, and runs continuous blower to satisfy demand. The heat pump or furnace will remain off for a minimum of five minutes and until the DAS senses 130ºF. Add more air to zone or redistribute zones to divide air more evenly.
Applicable models & manual sources
- HARMONY III
Discharge Air Sensor (DAS) detects high heating temperature
HARMONY III, X9953
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.
