What It Means
- Discharge Sensor Fault
Lennox Split & Multi-Split
Lennox Error Code DS2 OFF, DS1 Fast Flash
Split & Multi-Split:
Causes & actions from Lennox
How it shows
- defrost control ds2 ds1 led: DS2 OFF, DS1 Fast Flash (ds1: flashing (fast), ds2: off)
Discharge Sensor Fault. The board detects open sensor or out of temperature sensor range. This fault is detected by allowing the unit to run for 90 seconds before checking sensor resistance. If the sensor resistance is not within range after 90 seconds, the board will count one fault. After 5 faults, the board will lockout.
Applicable models & manual sources
- XP19
Discharge Sensor Fault
- XP19
Discharge Sensor Fault
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.
