What It Means
- Watchguard -- Burners failed to ignite, limit open longer than 3 minutes, or flame sense lost 5 times in one heating cycle.
Lennox Ducted Heating
Lennox Error Code DS1 ALTERNATING SLOW FLASH, DS2 ALTERNATING SLOW FLASH
Ducted Heating:
Causes & actions from Lennox
How it shows
- g51mp surelight ds1 ds2 led: DS1 ALTERNATING SLOW FLASH, DS2 ALTERNATING SLOW FLASH (ds1: flashing (slow), ds2: flashing (slow))
This manual entry does not list further causes or actions.
Applicable models & manual sources
- G51MP
Watchguard −− Burners failed to ignite, limit open longer than 3 minutes, or flame sense lost 5 times in one heating cycle.
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.
