What It Means
- The following conditions are sensed during the ignitor warm-up period only: 1) Improper main ground; 2) Broken ignitor; OR: Open ignitor circuit; 3) Line voltage below 75 volts.
Lennox Ducted Heating
Lennox Error Code DS1 ALTERNATING FAST FLASH, DS2 ALTERNATING FAST FLASH
Ducted Heating:
Causes & actions from Lennox
How it shows
- g51mp surelight ds1 ds2 led: DS1 ALTERNATING FAST FLASH, DS2 ALTERNATING FAST FLASH (ds1: flashing (fast), ds2: flashing (fast))
This manual entry does not list further causes or actions.
Applicable models & manual sources
- G51MP
The following conditions are sensed during the ignitor warm−up period only: 1) Improper main ground; 2) Broken ignitor; OR: Open ignitor circuit; 3) Line voltage below 75 volts.
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.
