What It Means
- Low pressure fault
Lennox Split & Multi-Split
Lennox Error Code DS2 OFF, DS1 SLOW FLASH
Split & Multi-Split:
Causes & actions from Lennox
How it shows
- defrost control ds2 ds1 led: DS2 OFF, DS1 SLOW FLASH (ds1: flashing (slow), ds2: off)
1Remove any blockages or restrictions from coils and/or fans. Check indoor and outdoor fan motor for proper current draws. 2Check system charge using approach and subcooling temperatures. 3Check system operating pressures and compare to unit charging charts. 4Make sure all pressure switches and sensors have secure connections to system to prevent refrigerant leaks or errors in pressure and temperature measurements.
Applicable models & manual sources
- XP15
Low pressure 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.
